Though he survived an NYPD manhunt and hostage standoff in 1986, Larry Davis died violently yesterday in an upstate prison yard after being shanked multiple times by a fellow inmate. Davis was stabbed multiple times with a foot-long metal shank. According to the state Department of Correctional Services, Luis Rosado killed Davis at 7:30 p.m. last night while prisoners were out for an evening recreational session at Shawangunk Correctional Facility. Rosado stabbed Davis on his......