The deadly, multifaceted attack was deeply personal for some medical residents who treated victims of the mass shooting and inferno, a hospital official said.

The ordeal was “kind of a traumatic experience,” said Dr. Michael Danic, medical chief of staff at Henry Ford Genesys Hospital.

“We had a number of our (medical) residents who were members of the church and were on site,” Danic said. “Not only were they victims, they were also first responders. And having your friends and family come in injured and taking care of them is a really incredible experience.”

Of the eight patients that Henry Ford Genesys Hospital received after Sunday’s attack at the Church of Jesus Christ of Latter-day Saints chapel in Michigan’s Grand Blanc Township, one died and seven have survived, according to the hospital’s medical chief of staff, Dr. Michael Danic.

Police have said that the attack killed four people and injured eight others.

The eight patients that Henry Ford Genesys Hospital received ranged in age from 6 to 78, Danic said. Five of them suffered gunshot wounds, and three suffered from smoke inhalation, he said.

Of the five Henry Ford Genesys patients with gunshot wounds, one died, Danic said. One of the others was in critical condition Monday with multiple gunshot wounds to the chest and abdomen, while another also was in critical condition after suffering gunshot wounds to the abdomen, according to Danic. Another man was shot in the leg. And a child who was shot was stabilized at the hospital before being transferred, Danic said.

Among the three brought to Henry Ford Genesys for smoke inhalation, two have since been discharged, but one was still intubated Monday, Danic said.

The mass shooting and fire could have been deadlier if not for the bravery of those who risked their lives to save others, a local hospital official said.

“Those on the scene were absolute heroes – going in and out of the fire to drag people out, helping each other take care of the victims on the scene,” said Dr. Michael Danic, medical chief of staff at Henry Ford Genesys Hospital.

“The community really came together,” he said

The good Samaritans included hospital nurses on strike who left the picket line and ran to the church to try to help.

The hospital received eight patients from the attack, ranging from 6 to 78 years old.

Five of those patients suffered gunshot wounds, and one of those patients has died, Danic said. The other three patients suffered smoke inhalation.

The Bureau of Alcohol, Tobacco, Firearms and Explosives has brought in one of its “world-renowned” specialized rapid response teams to investigate the church shooting and fire, officials said in a news conference Monday.

The group, one of several National Response Teams maintained by the ATF, investigates large fires, explosions and bombings across the nation. These teams can include explosives specialists, bomb technicians, forensic chemists and canine handlers.

“They have been used all over the world, and they come from places as far as California, Hawaii, and they’re here in Michigan now,” ATF acting special agent in charge James Deir said.

The team arrived Sunday night and is examining the scene, he added.

National Response Teams have aided in some of the nation’s most high-profile crisis investigations, including the 9/11 World Trade Center attack and the Oklahoma City bombing in 1995.

Grand Blanc Township Police Chief William Renye described the church attack as an “evil act” but said the township would move forward.

“This is not Grand Blanc. This does not define Grand Blanc and who we are,” Renye said during a news conference. “We are a community, and I am confident that together we’re going to build a stronger community due to this incident.”

Improvised explosive devices, or IEDs, were found at the scene of the attack, according to James Deir, acting special agent in charge with the Bureau of Alcohol, Tobacco, Firearms and Explosives in Michigan.

A bomb squad was assessing a suspicious item found on church property that was believed to be a possible IED, according to a source familiar with the incident, CNN has reported.

“The FBI is investigating this as an act of targeted violence, and we are continuing to work to determine a motive,” said FBI acting special agent in charge Ruben Coleman.

Investigators are working around the clock to follow up on leads, including public tips, Coleman said.

“Our special agents, victim specialists, child advocates, forensic interviewers and local partners have interviewed over 100 victims and witnesses to date, and are continuing to interview individuals as we speak,” he added.

Everyone has been accounted for following Sunday morning’s mass shooting at a Michigan church, Grand Blanc Township Police Chief William Renye said Monday.

The attack killed four people and injured eight others, Renye said. The attacker also is dead, having been killed in a shootout with police, authorities have said.

Michigan Gov. Gretchen Whitmer said her “heart is breaking by another mass shooting in a place that is supposed to be defined by togetherness.”

“We’ve seen gun violence in our schools, stores, parades, festivals and our houses of worship. These are places that we go to feel connected, to feel safe, to be together,” the governor said Monday during an update on Sunday’s attack at a Church of Jesus Christ of Latter-day Saints in Grand Blanc Township.

“But today, this place has been shattered by bullets and broken glass. And this might be a familiar pain, but it hurts all the same every time.”

The Democratic governor ordered flags lowered statewide.

Whitmer also said she spoke with President Donald Trump, who shared his condolences Sunday.

Authorities are holding a news conference at the Grand Blanc Township Police Department to provide an update on the investigation into Sunday’s shooting at a Church of Jesus Christ of Latter-day Saints chapel that left four people dead.

Federal and local agencies will provide updates, authorities said.

Photos taken by CNN show a car parked across the street and down the road from the Church of Jesus Christ of Latter-day Saints that was struck by gunfire. The driver’s side and windshield were pierced by bullets.

Brian Taylor told WJBK he was inside his vehicle with his wife, trying to drive away, when the shooter opened fire on them. Taylor’s right hand was cut after a bullet struck his windshield.

Taylor said that after a truck rammed into the church and he realized it was an intentional attack, he began getting people out of the area.

After finding his wife, he went to his car and called his son, who was also at the church, and learned his son was in another vehicle. He added that he helped some elderly women from the church into his car to help them escape.

“As soon as I saw the door open with the shooter with his rifle, that’s when I tried to drive away and that’s when he shot at us,” he told WJBK.

A member of the Church of Jesus Christ of Latter-day Saints described seeing the church Monday morning, saying it feels like a “lifetime of memories is just gone.”

Brandt Malone has been been going to the LDS church in Grand Blanc Township for many years, he told CNN.

Malone said his wife and daughter had been at the church on Saturday night – the night before the shooting and fire – for a youth activity.

“The hardest thing for our community right now is feeling like that security blanket has been ripped away,” Malone said.

A Grand Blanc Township resident described Sunday’s shooting at the Church of Jesus Christ of Latter-day Saints as “disturbing.”

CNN’s Leigh Waldman spoke with Jeff Caryl on Monday morning.

Caryl, who lives about four houses down from the church, said he heard what he initially thought were firecrackers on Sunday morning, but it turned out to be gunfire.

Thick black smoke filled the air, and Caryl said he saw flames reaching as high as 60 to 70 feet.

“It just doesn’t make sense,” Caryl said. “If you’re a good human being, you don’t pick on churches and schools and it’s just disturbing to tie all that together.”

Portions of the Church of Jesus Christ of Latter-day Saints lay burned Monday morning, just 24 hours after a gunman set fire to the building and opened fire on worshippers.

Video captured by CNN shows the remains of the building in Grand Blanc Township, Michigan.

Here’s what the church looks like this morning:

A man in a red car drove through a barricade midday Monday near where a gunman a day earlier rammed his pickup truck into a church, opened fire on congregants and then set the church ablaze.

Photos of the red car show what appears to be a long gun in the front seat. That driver was taken into a law enforcement vehicle. His identity and motive were not immediately clear.

Four people were killed Sunday in the multipronged attack at the Church of Jesus Christ of Latter-day Saints chapel in Grand Blanc Township, Michigan. The gunman was killed in a shootout with police.

Thomas Jacob Sanford, who authorities say was the gunman in Sunday morning’s fatal shooting and fire at a Michigan church, was an Iraq War veteran and outdoorsman, according to military records and social media posts.

Police say Sanford, 40, of Burton, Michigan, rammed his pickup truck into the front of The Church of Jesus Christ of Latter-day Saints in Grand Blanc Township before shooting at congregants with an assault rifle and, at some point, setting the building on fire. At least four people were killed and eight injured. Sanford died during an exchange of gunfire with police, authorities said.

Authorities did not immediately provide a motive for the attack.

A Marine Corps spokesperson told CNN that Sanford served as a sergeant and received several medals for his service, which lasted from 2004 to 2008. He was deployed during Operation Iraqi Freedom for several months starting in the summer of 2007.

Sanford graduated from Goodrich High School in 2004 and was recognized among other veteran alumni, according to an archived page from the school’s website. A local news profile of Sanford from 2007 said he was deployed with the US Marine Corps to Japan before preparing to head for service in Iraq.

Social media accounts linked to Sanford’s family show he was married with at least one child, a young son. According to a GoFundMe page from 2015, the family was in need of donations to help pay for the medical care of Sanford’s son, who was born with a rare genetic disorder.

Read more about Sanford here.

Kris Johns, Burton city council candidate, near Michigan’s Grand Blanc Township, spoke with a potential voter on the campaign trail — just days before that individual carried out a deadly attack on a Church of Jesus Christ of Latter-day Saints chapel.

“What are your thoughts on guns?” Thomas Jacob Sanford — the US Marine and Iraq War veteran who died at the scene of Sunday’s shooting and arson — asked Johns just one week ago, the Burton candidate recalled to CNN. “What are your thoughts on Mormons?”

Otherwise, the conversation wasn’t political, Johns said.

At least four people were killed, and several others were wounded after an attacker rammed his car into The Church of Jesus Christ of Latter-day Saints in Grand Blanc Township, Michigan, during a Sunday service, before opening fire on worshippers and setting a fire that destroyed the building.

The gunman is dead and the motive remains unknown as federal officials investigate the incident as targeted violence.

Authorities are still combing through debris.

The victims: At least two of the people who were killed died from gunshot wounds, according to police. Eight others were injured, including children, a source told CNN. Authorities said they believe they will find more victims after they secure the chapel, which is now a “total loss.” Up to seven people were still unaccounted for as authorities concluded search efforts on Sunday, a law enforcement source told CNN.

The gunman: A 40-year-old man from Burton, Michigan, was identified as the shooter. The man used an assault rifle during the attack and was shot dead by police. Officials believe there is only one person involved.

The fire: Authorities believe the suspect “deliberately” set fire to the church using an accelerant. Some suspected explosive devices linked to the incident were also found. It’s unclear if any explosives were also used to start the fire, authorities said.

The investigation: The FBI is investigating the incident as an “act of targeted violence.” The FBI’s assumption of leadership in the case signals authorities have potentially uncovered violations of federal law. A search of the perpetrator’s residence is underway and authorities are working to obtain search warrants for digital media that may help shed light on a motive, a law enforcement source told CNN.

As of Sunday afternoon, there have been at least 324 mass shootings this year, according to the Gun Violence Archive, which like CNN defines a mass shooting as one in which four or more people – not counting the shooter – are shot.

Sunday’s attack at the church in Michigan followed another mass shooting less than 24 hours earlier: Saturday night, a gunman opened fire on a waterfront bar in Southport, North Carolina, killing three people and injuring at least eight others.

Sunday’s attack occurred at a chapel of The Church of Jesus Christ of Latter-day Saints, a religious faith with millions of followers that was founded in New York in the 19th century.

Correction: A photo in this post has been updated to reflect the correct church mentioned in the report.