Billy Coen was exonerated of the false charges against him after the events of Resident Evil 0.
Billy Coen, a former Marine, was introduced in the video game Resident Evil 0, which is part of the Resident Evil series developed by Capcom. In the game’s narrative, he was being transported to his execution for allegedly killing 23 people in an incident that was later revealed to be a cover-up by his commanding officer. However, the military police transport carrying him was attacked by leeches infected with the T-virus, causing the vehicle to crash near the Arklay Mountains.
During the events of Resident Evil 0, Billy teams up with Rebecca Chambers, a member of the S.T.A.R.S. Bravo team, to survive the horrors unleashed by the T-virus in the area surrounding the Spencer Mansion. Together, they uncover the truth behind the viral outbreak and the sinister experiments conducted by the Umbrella Corporation.
By the end of the game, Rebecca and Billy manage to defeat the mutated scientist Dr. James Marcus, who was responsible for the outbreak. After surviving the ordeal, Rebecca sees the good in Billy and decides to report him as dead to the authorities, allowing him to go free and start a new life. His fate after these events is not detailed in the series, leaving his story open-ended. The decision to let Billy go reflects Rebecca’s belief in his innocence and her understanding of the unjust circumstances that led to his conviction.