Mission Destination:

Leonard Dillon was an inmate at the Fiorina “Fury” 161 Class C Work Correctional Unit, one of several who stayed behind after the facility was officially closed down by Weyland-Yutani. He was involved in battling a lone Xenomorph that was born in the prison in 2179.

Dillon acted as something of a religious leader and preacher among the remaining inmates, leading them in prayer and overseeing their social harmony. When the prison’s warden Superintendent Andrews was killed, Dillon became a reluctant leader for the survivors, despite initially refusing the role. He ultimately sacrificed himself to help kill the Xenomorph on Fiorina 161.

Source: https://avp.fandom.com/wiki/Leonard_Dillon