A man who allegedly threatened a Riverside County sheriff’s deputy with a hammer Monday in Jurupa Valley was fatally shot by the lawman. The deputy-involved shooting occurred shortly after 4 a.m. Monday in the 6000 block of Collins Street, just west of Van Buren Boulevard, according to the Riverside County Sheriff’s Department. Sgt. Robert Martinez said the patrol deputy, whose identity was not disclosed, was sent to the location to investigate …