During his time at the Ray of Hope group home, Billy Russo was a victim of attempted child molestation when one of the good Samaritans, Arthur Walsh. Fearing for his own safety, Russo attempted to defend himself by then striking his attacker with a stickball bat, but not without still being severely injured by the perpetrator who proceeded to break his arm. Many years later, the incident in Ray of Hope was printed in Russo's mind as he told Frank Castle about it. One day, Russo together with Castle went to Walsh's house with the strong intention to revenge, however, changed his mind, seeing him.
Brain damaged, in the wake of Duel at the Central Park Carousel, Russo used Krista Dumont to escape from the custody in Sacred Saints Hospital. Without any memories about several last years, he managed to remember Walsh and group home and with federal prosecution, decided to hide in there. However, the home was destroyed and rebuilt several years ago and without any other place to go, Russo headed to Walsh's place.
Billy Russo managed to break into Arthur Walsh's house, however he did not recognize Russo, assuming that he was a robber. Russo reminded him about Ray of Hope, much to Walsh's surprise. Still anxious, Walsh gave Russo a cup of coffee with whiskey as they were talking about their past. Russo said that he could not remember what happened to his face but remembered Walsh's address.
Walsh then got angry about his past with Ray of Hope residents and what had happened during his incarceration in Sing Sing. Walsh expressed his anger on Russo, saying that whatever happened in his life was not his fault. When Russo mentioned his service in United States Marine Corps, Walsh mockingly noted that all he got for his service was his scars, mocking him to the point that laughed at his face directly. As Walsh admitted that he was no longer good looking, Russo became fueled with anger and brutally murdered him.
Noting Walsh's body, Mahoney asked Madani what happened with her and Russo. Madani refused to answer and before she left, Mahoney threatens to arrest her for obstruction and Madani noted that she is SAC of the Homeland Security and Mahoney cannot just arrest her. She then said, Mahoney, that he has a homicide and left Walsh's house, leaving him to work.