A 49-year-old Petaluma man severely disabled in a motorcycle crash remained missing Thursday, more than 24 hours after he was last seen by family members, Petaluma police said.
John Wirth has a severe brain injury that leaves him unable to care for himself and is considered at risk, police said.
A cell phone that he carries but does not use was detected in Vacaville on Wednesday night, but it was unclear how Wirth — who uses a bicycle — might have traveled so far, authorities said.
Wirth left home around 7 a.m. Wednesday on a red Pacific bicycle and was reported missing around 7:30 p.m. when he had not come home.
He is easily confused and unable to manage many normal functions because of traumatic brain injury suffered in the crash, police said.