PITTSBURGH (AP) — Sam Davis, the guard who helped the Pittsburgh Steelers win four Super Bowls in the 1970s, has died. He was 75. Davis was found dead Tuesday at New Life Personal Care in McKeesport southeast of Pittsburgh. Davis, who suffered from dementia and was legally blind, had been reported missing from the facility earlier in the day. There was no evidence of foul play according to the McKeesport Police Department’s Facebook page.