angered their mother Tess, who died of cancer shortly afterwards. Cyril recalls the incident and beats Eldridge severely; the story is subsequently quashed. After Asian inmate Jia Kenmin arrives in Oz, disputes erupt between him and both the Irish and Latino factions. Kenmin provokes Cyril and Ryan to the point where Cyril loses control, beating the Asian man into a coma. McManus, angry and alarmed, considers transferring Cyril to the Connolly institute for the Mentally Unstable. Sister Pete, however, pushes him to send Cyril to Protective Custody for a while so that he can calm down. Back in Em City, Ryan and new inmate Padraig Connolly, an IRA member awaiting deportation, plan to blow up Oz. The bomb is a dud, but Ryan leaves the gas leaking in the cafeteria which eventually detonates, destroying both Emerald City and the cafeteria. Throughout the season, as Dr. Nathan finally falls for Ryan, she becomes somewhat more forgiving towards Cyril for killing her husband. Season 5 Ryan's birth mother Suzanne Fitzgerald turned herself in after being on the run with a radical group for more than 30 years. Governor Devlin however reduces her charges to 2 years of community service at Oz where she can see Ryan and Cyril. While Cyril was in Protective Custody, it was determined that he and Ryan were half-siblings with different mothers but Ryan and Suzanne keep this secret from him. They enjoy seeing her on a daily basis but this is short lived when Jia Kenmin and new Asian inmate Li Chen attend some of the performing arts classes. Jia offers peace to the two of them which Cyril accepts but Ryan remains cautious about. In an attempt to set up the O'Reily brothers, Kenmin pays inmate Glen Shupe to tell Ryan that Chen plans to rape Suzanne and as a result, he and Cyril attack Jia. Cyril picks up a knife from the two Asians during the fight and stabs Li Chen to death defending Ryan. Furious, Tim McManus sends Ryan to the cage and Cyril to solitary but not before stating that Cyril will either be sent to the insane asylum or death row as he is growing tired of Cyril's behavior. As Ryan is in the common room cage, Kenmin informs him it was a set up in order to eliminate the two brothers. On trial for murder, Cyril is represented by Katherine McClain