A Pleasanton man was left for dead at the side of the road after confronting people parked outside his home making noise late Friday night.
The victim, a resident of Middleton Place, is in critical condition, according to a news release from the Pleasanton Police Department.
Middleton Place is one of several cul-de-sacs off Hopkins Way southeast of Mission Hills Park.
Neighbors say the man, whose name is being withheld, was found unconscious by his wife, who heard the car pull off after the man went outside.
"His wife thought he was coming back. She went to go find him," said neighbor Carolyn DeFeo, who sent out a warning email to others about the attack. "She didn't know where he was."
DeFeo said it was a group of boys and girls, and that there was an argument when the man went outside to complain about the noise.
"There was an argument," she said. "He was knuckle punched or sucker punched."
She said the man fell over, and that "the kids panicked and left our neighbor on the side of the road. He was unconscious."
DeFeo said the man suffered from a fractured skull and had teeth knocked out.
"He's in ICU," She said. "He's in bad shape and we're hoping he will stabilize and get better."
Another neighbor, who asked not to be identified, was just arriving home around the time of the attack.
"I saw a copper-colored or golden car coming down the street," the young man said. "At the time, I didn't think too much about it."
He added that the vehicle he saw was an SUV and that he saw the silhouette of the driver and movement in it was well.
Ten to 15 minutes later, he said, "I saw a fire truck followed by a police car, followed by another police car, followed by an ambulance."
While police were at the scene, he said he also saw a black Mercedes SUV go partway up the street, then turn around and leave.
"It made a U-turn halfway up the street," he said.
The police department news release said "there had been several subjects, possibly teenagers, outside the residence making noise."
Anyone with information about the case, which police describe as ongoing, is asked to call the police department at 931-5100.
One neighbor said that teens occasionally use the cul-de-sac was a place to party and for access to the ridge through a gate at the end of the street.
"It's stupid, how easily it could have been avoided, how it escalated. It was so unnecessary," said the neighbor. "All they had to do was get in the car and leave."