Four girls — two 18-year-olds from Concord and two Walnut Creek minors — were arrested after an elderly man was beaten and robbed late Thursday near the Rossmoor area, police said. The attack happened around 11 p.m. on the 1900 block of Tice Valley Boulevard; officers found the victim with significant injuries and quickly tracked a suspect vehicle, taking all four into custody.
The case rattles a part of Walnut Creek known for its large 55+ community and late-night quiet, and comes amid a year in which robbery reports have swung month to month citywide. Police stressed there is no ongoing threat tied to this incident as the investigation continues.
What police say happened
Officers were dispatched to Tice Valley Boulevard near the Rossmoor Shopping Center and learned the victim had been assaulted and personal items taken before the suspects fled by car, according to a department statement released Friday. The adults — identified as 18-year-old Antonina Abdulwajid and 18-year-old Jaycee Behnke, both of Concord — were booked into the county jail; the juveniles, ages 17 and 15, were taken to Juvenile Hall, per authorities. The four face suspicion of robbery, assault with a deadly weapon (not a firearm), causing injury to an elder, and conspiracy to commit a crime, according to coverage by KTVU and CBS Bay Area. Police did not release the victim’s name or age.
“There appears to be no continued threat to [the] community at this stage,” Walnut Creek Police said in a news release shared by the department and republished by the Contra Costa Herald. A similar summary of the arrests was also reported by the San Francisco Chronicle and ABC7.
Where it happened
The assault was reported in the 1900 block of Tice Valley Boulevard, near the Rossmoor Shopping Center (Safeway’s address there is 1972 Tice Valley Blvd.), according to public records on the center and local reporting. Police have not specified a business connection in this case; location details were broadly described as near Rossmoor in initial statements, as noted by ABC7 and the Chronicle. Property records list the shopping center spanning 1900–1998 Tice Valley Blvd., anchored by Safeway and other tenants, per the center’s owner Sterling Organization.
Context: recent incidents and crime data
In January, police investigated a separate gunpoint robbery of a Safeway employee in the same corridor’s parking lot at 1971/1972 Tice Valley Blvd., as posted by the department on Nextdoor and reported by local outlets. The earlier case involved a male driver pointing a handgun after an alleged alcohol theft; the employee was not injured, according to Walnut Creek Police and CBS Bay Area.
Citywide robbery numbers this year have fluctuated, with Walnut Creek Police data showing nine robberies in February and March, dropping to two in June (2025 data updated July 15), according to Walnut Creek Police. Rossmoor itself is a 55+ community in Tice Valley — a demographic reality that can make crimes against older adults especially alarming for neighbors — as backgrounded by public records.
What the charges could mean
The listed offenses carry serious potential penalties under California law if prosecutors file and a court convicts. Felony elder abuse causing or likely to cause great bodily harm can carry two, three, or four years, with additional time if the victim is 70 or older, per the state Attorney General’s outline of Penal Code §368. Assault with a deadly weapon (not a firearm) is punishable by up to four years, according to Penal Code §245.
Robbery sentencing depends on degree — first degree generally three, four, or six years; second degree two, three, or five — as outlined in Penal Code §213. Conspiracy is typically punished like the underlying felony, per Penal Code §182. Charges have been announced by police; filing decisions rest with the Contra Costa County District Attorney.
If you have information
Anyone with tips is asked to contact Walnut Creek Police at 925-943-5844 or the anonymous line at 925-943-5865, according to the department’s notice shared by the Contra Costa Herald and covered by CBS Bay Area. For broader neighborhood context, see our earlier coverage of an April attempted robbery elsewhere in the city: Police Seek Suspects in Daylight Attempted Robbery in Walnut Creek.
