DeCandido universe (DeCandido's novelizations of Anderson's Films)
Markinson was a S.T.A.R.S. SWAT officer active in Raccoon City in 2002. Jill had low opinions on him, portraying him as having withdrawal pains when not up Henderson's ass. When hearing about the Nemesis' attack on a makeshift S.T.A.R.S. base, Jill Valentine assumed him deceased.