HAYWARD -- A man found fatally shot behind the wheel of an SUV last week has been identified by police as Hayward resident Carlos Diaz-Rubalcava.

Diaz-Rubalcava, 22, died Thursday evening after being shot by an unknown suspect, Sgt. Mark Ormsby said.

Police on Tuesday were not releasing how many times he was shot or where he was shot.

Investigators learned about the shooting just before 5:40 p.m. after receiving multiple 911 calls about a traffic crash on the corner of Saklan Road and West Winton Avenue. Officers found the man fatally shot in the driver's seat of a Ford Explorer, said Sgt. Mark Ormsby.

As police investigated, they learned of another shooting victim who had been dropped off at the Kaiser emergency room in Hayward. That man, a 48-year-old Oakland resident, was eventually transported to Eden Medical Center in Castro Valley.

He was shot once in the chest, Ormsby said, and was expected to survive. The shootings, which police said are related, remained under investigation on Tuesday.

Diaz-Rubalcava and the 48-year-old Oakland man may be associated with the Hells Angels motorcycle club, police have said.

Police said that the surviving victim's friends who showed up at hospital to check on him Thursday night were Hells Angels members, they but didn't say whether that victim or the man found fatally shot in the Ford Explorer were club members.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.