Los Angeles County Sheriff Robert Luna identified the man as 72-year-old Huu Can Tran and said no other suspects were at large.

Speaking at a Sunday evening news conference, he said the motive remained unclear for the attack, which wounded 10 more.

Luna did not have the exact ages of the victims but said they all appeared to be over 50. Seven of the wounded people remained in the hospital, he said.

The sheriff said the suspect was carrying what he described as a semi-automatic pistol with an extended magazine, and a second handgun was discovered in the van where Tran was found dead.

Also speaking at the news conference, congresswoman Judy Chu said she still has questions about the attack: “What was the motive for this shooter? Did he have a mental illness? Was he a domestic violence abuser? How did he gets these guns and was it through legal means or not?”

Earlier on Sunday, law enforcement officials swarmed and entered the van after surrounding it for for hours before going in.

A person’s body appeared to be slumped over the wheel and was later removed from the vehicle.

Los Angeles County Sheriff Robert Luna previously released photos of an Asian man who was believed to be the suspect.

The manhunt came after the gunman killed 10 people at a ballroom dance studio late on Saturday amid Lunar New Year celebrations in the predominantly Asian American community of Monterey Park.

He likely tried and failed to target a second dance hall, authorities said.

The van was found in Torrance, another community home to many Asian Americans, about 30 kilometres from that second location.

The shooting sent a wave of fear through Asian American communities in the Los Angeles area and cast a shadow over Lunar New Year festivities around the country. Other cities sent extra officers to watch over the celebrations.

Luna said the shooting at the Star Ballroom Dance Studio in Monterey Park left five women and five men dead and wounded another 10 people.

Then about minutes later, a man with a gun entered the Lai Lai Ballroom in nearby Alhambra.

The suspect entered the Alhambra club with a gun, and people wrested the weapon away from him before he fled, Luna said.

Hours earlier, Luna said authorities were looking for a white van after witnesses reported seeing the suspect flee from Alhambra in such a vehicle.

Members of a SWAT team entered the van a short time later and looked through its contents before walking away. It was unclear what they found.

The massacre was the nation’s fifth mass killing this month. It was also the deadliest attack since May 24, when 21 people were killed in an elementary school in Uvalde, Texas.

Monterey Park is a city of about 60,000 people on the eastern edge of Los Angeles and is composed mostly of Asian immigrants from China or first-generation Asian Americans.

The Lunar New Year celebration in Monterey Park is one of California’s largest. Two days of festivities were planned, but officials cancelled Sunday’s events following the shooting.

President Joe Biden and Attorney-General Merrick Garland were briefed on the situation, aides said.

Biden said he and first lady Jill Biden were thinking of those killed and wounded, and he directed federal authorities to support the investigation.

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– AP