A South San Francisco man was strangled and beaten over the head with a hammer by a teenager who had been helping him clean out his garage Sunday, police said.
The 17-year-old attacker was arrested on suspicion of attempted murder in connection to the brutal attack in the 300 block of Newman Drive. The teenager apparently became enraged when the 47-year-old victim reneged on an offer to give him a stereo amplifier as payment for helping tidy up the garage, South City police spokeswoman Joni Lee said.
A neighbor called police around 12:30 a.m. after hearing screams coming from the home, Lee said. Officers arrived and found the resident suffering from serious head wounds.
Investigating officers said the teen and man got into an argument that erupted into blows. The amped-up 17-year-old allegedly choked the man to near unconsciousness, then found a hammer and struck him twice over the head, Lee said. The boy was arrested at the scene and booked into Hillcrest Juvenile Facility.
The victim was transported to Kaiser Hospital in South San Francisco. After doctors discovered some internal bleeding, he was transferred to San Francisco General Hospital, which is known for treating serious head trauma cases, Lee said.