Peter Montenegro, 15, was arrested Wednesday night on suspicion of taking part in the shooting of 39-year-old Amarjit Kaur last week. He is accused of attempted murder and attempted robbery.
Vallejo police and the FBI staked out the 1100 block of 73rd Avenue in Oakland. At about 7 p.m., Montenegro was seen leaving a residence carrying a suitcase and bags. He was with three other people, police said.
Montenegro was taken into custody without incident and booked into juvenile hall on an arrest warrant issued in Solano County. He will be returned to Solano County.
The three people who were with him were detained and questioned as potential suspects in the harboring of a fugitive. They were released pending further investigation.
Police earlier arrested a 14-year-old boy suspected of being an accomplice. He was booked into juvenile hall in Solano County.
At about 2:41 p.m. Feb. 3, Vallejo police responded to a report of a woman slumped behind the steering wheel of an ice cream truck in the area of Springs Road at Castlewood Drive. The truck was near Springstowne Middle School, where Kaur regularly sold ice cream.
According to a detective, Montenegro and another boy allegedly demanded money from Kaur.
The detective said Kaur, a recent immigrant who did not speak English well, had trouble understanding their demands and was shot when the boys thought she was not responding quickly enough.
Kaur was taken to John Muir Medical Center in Walnut Creek.
A gun apparently used in the shooting has been recovered, police added.