Updated

The Latest on a shooting of two firefighters and another person in Southern California (all times local):

5:20 p.m.

Officials say a wounded firefighter has been released from the hospital after a 77-year-old man opened fire on first responders who rushed to a report of an explosion at a Southern California retirement home.

The Long Beach Fire Department says on Twitter that Ernesto Torres was released Monday.

Police Chief Robert Luna says investigators believe, based off a preliminary investigation, that Thomas Kim, set a fire early Monday morning to target first responders to the retirement home.

A fire captain, Dave Rosa, who had worked for the department for 17 years, was shot and killed. Authorities said another retirement home resident was also shot and remained in critical but stable condition

Kim was arrested on suspicion of murder, attempted murder and arson. It isn't clear if he has an attorney.

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4:45 p.m.

Investigators believe a 77-year-old resident set a fire at the California retirement home where he lives to target first responders in a shooting.

Long Beach Police Chief Robert Luna says that's based off a preliminary investigation conducted after Monday morning's shooting.

The suspect, Thomas Kim, was arrested on suspicion of murder, attempted murder and arson. He's being held on $2 million bail.

Luna says two explosive devices were found in Kim's apartment and police rendered them safe. Police also recovered a revolver after arresting Kim.

Long Beach Fire Capt. Dave Rosa, who had worked for the department for 17 years, was shot and killed.

A second firefighter and another resident at the retirement home were wounded.

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4:20 p.m.

Police say a retirement home resident is accused of shooting two firefighters — one fatally — and another resident after they responded to a report of an explosion in the building.

Long Beach Police Chief Robert Luna says Monday that 77-year-old Thomas Kim was arrested on suspicion of murder, attempted murder and arson.

Authorities say they also found "suspicious devices" at the scene.

Fire Capt. Dave Rosa was killed. Another firefighter suffered non-life-threatening injuries and is expected to recover.

Police say the investigation is ongoing.

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2:20 p.m.

The body of a Southern California firefighter shot to death in the line of duty has arrived at a coroner's office after a solemn motorcade.

A coroner's van carrying the remains of Capt. Dave Rosa was escorted Monday by a column of fire trucks and law enforcement vehicles on the long drive from the port city of Long Beach to the morgue near downtown Los Angeles.

Firefighters from many departments stood on streets and on freeway overpasses, saluting as the procession passed by.

The 17-year veteran of the Long Beach Fire Department was one of two firefighters hit by gunfire before dawn as they responded to an explosion and fire at a senior living apartment tower.

The other firefighter's wounds are described as not life-threatening. A third gunshot victim only described as a civilian was said at midmorning to be in critical condition and in surgery.

Police have detained a person believed to be a resident of the building and have recovered a gun but there's no word on a motive for the violence.

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12:40 p.m.

The body of a Southern California firefighter shot to death in the line of duty is being taken from a hospital in Long Beach to a morgue near downtown Los Angeles.

A van carrying the remains of 45-year-old Capt. Dave Rosa is being escorted Monday afternoon by a procession of fire trucks and police cars and motorcycles with emergency lights flashing.

The 17-year veteran of the Long Beach Fire Department was one of two firefighters hit by gunfire before dawn as they responded to an explosion and fire at a senior living apartment tower. Rosa is survived by a wife and two children.

The other firefighter's wounds are described as not life-threatening. A third gunshot victim only described as a civilian was said at midmorning to be in critical condition and in surgery.

Police have detained a person believed to be a resident of the building and have recovered a gun but there's no word on a motive for the violence.

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8:26 a.m.

A firefighter who was shot while responding to an explosion and fire at a Southern California retirement home has died.

Long Beach Fire Chief Mike DuRee announced that the firefighter had died about four hours after the shooting before dawn Monday.

DuRee says the 45-year-old firefighter was a 17-year veteran of the department and leaves behind a wife and two children.

Another firefighter and another person were also wounded.

Authorities say the person believed responsible for the shooting is a resident of the facility. He's being questioned.

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7:24 a.m.

Officials say two firefighters and another person have been shot at a Southern California retirement home and a suspect is in custody.

The shooting happened after firefighters responded to a pre-dawn Monday alarm at an 11-story tower in Long Beach, south of Los Angeles.

Long Beach Fire Department spokesman Jake Heflin says one firefighter was hospitalized in critical condition and the other suffered a non-life-threatening wound.

Police Sgt. Brad Johnson says another person was also wounded and hospitalized, but had no more information about that victim.

Johnson says a man believed responsible for the shooting is a resident of the facility and was taken into custody.

Heflin says firefighters arriving at the retirement home found some windows blown out, the smell of gas and a fire that they extinguished.