San Francisco police released a sketch Tuesday of a man wanted for questioning in the stabbing death of a 16-year-old boy in the city's Ingleside neighborhood.
The victim, Victor Zheng, and a friend were walking on the 500 block of Holloway Avenue about 10:45 p.m. Feb. 7 when a man walked up to Zheng and punched him numerous times without provocation, police said.
Zheng and his friend followed the man as he walked away. Near the corner of Ocean and Capitol avenues, the man turned and stabbed Zheng in the chest, then fled in a black two-door Honda with chrome rims, police said.
Zheng, who attended Balboa High School and City College of San Francisco, was pronounced dead at San Francisco General Hospital. His friend was not hurt.
Investigators do not know whether Zheng knew the killer or what the motive for the attack may have been.
Police are looking for an Asian man, 18 to 19 years old, 5 feet 10 to 5 feet 11, weighing 160 to 180 pounds, with dark hair and eyes. He may have a mole on his upper right cheek.
The man was wearing a black hooded sweatshirt, baggy blue jeans and black tennis shoes, police said.
Anyone with information is asked to call homicide investigators at (415) 553-1145 or an anonymous tip line at (415) 575-4444, or to text a tip by entering 847411 and typing SFPD.
