A York County sheriff vehicle drives onto the property where multiple people, including a prominent doctor, were fatally shot a day earlier, Thursday, April 8, 2021, in Rock Hill, S.C. A source briefed on the mass killing said the gunman was former NFL player Phillip Adams, who shot himself to death early Thursday. (AP Photo/Nell Redmond)

FILE - In this Oct. 17, 2010 file photo, San Francisco 49ers cornerback Phillip Adams (35) sits on the sideline during the first quarter of an NFL football game in San Francisco. A source briefed on a mass killing in South Carolina says the gunman who killed multiple people, including a prominent doctor, was the former NFL pro. The source said that Adams shot himself to death early Thursday, April 8, 2021. (AP Photo/Paul Sakuma, File)