Huu Can Tran, the 72-year-old gunman who killed 11 people Saturday night inside a ballroom dance hall in Monterey Park, California, had no known relationship to the victims and a motive for the massacre during Lunar New Year celebrations was still unclear, investigators said Wednesday.

Los Angeles County Sheriff Robert Luna told reporters that Tran had not been to the Star Ballroom Dance Studio in the past five years and didn’t appear to specifically target the victims.

"We have not been able to establish a connection between the suspect and any of the victims thus far," Luna said.

Tran took time to reload as he sprayed at least 42 bullets on a mostly elderly crowd of dancers at the dance hall, killing 11 people and wounding nine, the sheriff said, adding that Tran had used a variant of the MAC-10 semiautomatic machine pistol with a 30-round magazine.

CALIFORNIA: POLICE GIVE UPDATE ON MONTEREY PARK SHOOTING, IDENTIFY WEAPONS USED IN LUNAR NEW YEAR ASSAULT

Robert Luna speaking

Los Angeles County Sheriff Robert Luna said on Wednesday that Tran had used a variant of the MAC-10 semiautomatic machine pistol with a 30-round magazine to kill 11 people and wound 9 others at the Star Ballroom Dance Studio in Monterey Park, California, last week. (AP Photo/Stefanie Dazio)

The victims killed Saturday night have been identified as Valentino Alvero, 68, Hong Jian, 62, Yu Kao, 72, Lilian Li, 63, Ming Wei Ma, 72, My Nhan, 65, Diana Tom, 72, Muoi Ung, 67, Chia Yau, 76, Wen Yu, 64, and Xiujuan Yu, 57.

Monterey Park memorial to shooting victims

Vice President Kamala Harris visits a memorial set up outside Star Dance Studio in Monterey Park, Calif., Wednesday, Jan. 25, 2023, to honor the victims killed in last week's mass shooting. (AP Photo/Jae C. Hong)

After his assault, police said the shooter fled the ballroom and used a Norinco 7.62 x 25mm pistol, which was properly registered, to take his own life inside a van as police closed in on Sunday morning.

11 MONTEREY PARK, CALIFORNIA, SHOOTING VICTIMS IDENTIFIED BY LA CORONER

Investigators also obtained a warrant for the suspect’s home, where they found a Savage Arms .308 caliber bolt action rifle and hundreds of rounds of ammunition.

California mass shooting suspect Huu Can Tran

Huu Can Tran, 72, was discovered dead on Sunday of a self-inflicted gunshot wound. (Los Angeles County Sheriff's Department)

With no known connection to the victims, investigators are still trying to determine Tran’s motive.

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"It doesn’t make sense," Luna said. "It really doesn’t."

Fox News’ Lawrence Richard and the Associated Press contributed to this report.