A York County sheriff's deputy is parked outside a residence 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 - This March 12, 2009 file photo shows Dr. Robert Lesslie in Rock Hill, S.C. Authorities say a gunman, identified as former NFL player Phillip Adams, killed Lesslie, his wife and grandchildren on Wednesday, April 7, 2021 in Rock Hill. Adams killed himself early Thursday according to a source who was briefed on the investigation. (John D. Simmons/The Charlotte Observer via AP)

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)

FILE - In this Dec. 15, 2013 file photo, Oakland Raiders defensive back Phillip Adams (28) gestures while playing against the Kansas City Chiefs during the second half of an NFL football game in Oakland, Calif. 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/Marcio Jose Sanchez, File)