Starvin Larry

67-year-old Tai Lam was found dead last Monday near Sutter and Montgomery streets. He had been savagely beaten as he slept on the sidewalk.

Video surveillance showed a man kicking his sleeping bag the night before. Police said the man and two other people returned a short time later and beat him again.

“There was no reason for this,” said San Francisco Police Lt. Toney Chaplin. “As far as provocation goes, I don’t know how much provocation you can give someone sleeping in a sleeping bag with your crutches a few feet away from you.”

“He was unable to defend himself. He died alone after suffering these horrendous attacks,” Chaplin said.

The new video shows the three suspects hanging out after the attack. The three young men appeared to be wearing hooded sweatshirts and baggy clothing and did not appear to be homeless themselves, Sgt. John Cagney said.

They were described as possibly in their late teens to early 20s or 30s, Cagney said.

The sergeant said two of the suspects are believed to be African-American while the third is believed to be Caucasian.