Unable to leave the premises, Nick starts using heroin again but cannot feed his drug addiction and asks Dot to obtain drugs for him. Dot purchases the heroin but Fatboy catches her and urges her to cut ties with Nick. Dot urges Nick to confess to the police, but when he tells her he is unwilling to take responsibility for Ronnie's injuries, she gives him the drugs and storms out. Dot later finds Nick unconscious, having had a bad reaction to the drugs, and it soon becomes clear to her that Nick is dying. Once he awakens, Nick accuses Dot of raising him wrong and the pair start recapping on his role behind Ronnie's injuries - before bringing up his past misdemeanors such as when Nick killed Eddie and later caused Ashley's death whilst trying to kill Mark. Despite these facts, Dot remains adamant to see the best in Nick until he confesses to the one crime he never told her about; the murder of her old friend Reg Cox (Johnnie Clayton), who was alleged to have died by accident nearly three decades ago. Horrified to have learned that it was Nick who killed Reg Cox all along, Dot brands her son evil and slaps him when he insults her. Nick then endures another affect of his drugging and requests his mother to phone an ambulance, to which she appears reluctant to do. Dot nonetheless complies, but stops at the last second and again contemplates on her decision. When she returns, Dot admits to Nick that she does feel responsible for making him the monster that he is and starts lecturing over the trouble he caused in Walford ever since he killed Reg Cox. It is then revealed that Dot never called the ambulance in the end, but instead prayed to let the circumstances decide whether Nick should live or die. As he takes his last breaths and accepting his fate, Nick apologizes to Dot for all the trouble he caused for her and asks her to forgive him; Dot tells Nick to seek Jesus for forgiveness and watches as Nick ultimately succumbs to the overdose and dies in front of her.