Wayne Wolcott is the criminal that Nick Monohan killed in action in Chicago that caused a lot of critizism for Monohan's family. (Pilot/Nick's Notes) Although Nick's official story was that he shot and killed Wolcott by accident, he actually knew exactly what he was doing (as he revealed to his wife on the one year anniversary) - he knew that there wasn't enough evidence and that Wolcott would probably get off free or lightly and would continue to rape women. (The Monster Within)
His parents and his sister, Amanda, attended his funeral as revealed to an article that Marcus Jordan and Leigh Turner looked up, while trying to find out more about Nick Monohan. (The Monster Within)
Teresa Goodwin is revealed to be really Amanda Wolcott, his sister that comes to The Gates to revenge her brother's death by murdering Nick and his family. She believed that her brother was innocent and blamed Nick for the pain he caused her family and wished he would feel the same, however she was killed by Dylan Radcliff before she was able to shoot Nick. (The Monster Within)
Nick states that he regrets taking Wolcott's life, and that he should have let the justice system deal with him. He says his desision haunts his mind everyday. (Surfacing)