California inmate kills prisoner serving life for child sexual assault
Jonathan Watson is seen in a booking photo obtained by KTLA sister KSEE/KGPE in Fresno.

via KTLA:

CORCORAN, Calif. (KTLA) -- One inmate fatally struck a fellow prisoner and critically wounded another at a central California prison, officials said Friday.

They said Jonathan Watson, 41, used a walking cane to cause multiple head wounds to both victims at the California Substance Abuse Treatment Facility and State Prison in Corcoran on Thursday.

Both were taken to an outside hospital, but one died en route and the other remained in critical condition.

Watson has served 10 years of a life sentence from Humboldt County for first-degree murder and discharging a firearm causing great bodily injury or death.

The slain inmate was David Bobb, 48, who was serving a life sentence from San Diego County for aggravated sexual assault of a child under 14 years old.

MORE: Central California Inmate Kills Prisoner Serving Life Sentence for Child Sexual Assault: Officials - KTLA