Thomas Orosco, mentioned in Silent Hill 2, was the father of Angela Orosco. He had a long history of violence and alcohol abuse and it is heavily implied throughout the game that he also sexually abused Angela, which eventually drove her to kill him.
A newspaper article found in the Labyrinth reveals that Thomas was murdered between the time of 11:00 P.M. and 12:30 A.M., date unknown. Official backstory reveals that Angela was the murderer, who stabbed him multiple times in a fit of passion with a knife.
A photo left in a room in which Angela was residing shows a mother, daughter, father and son in that order. The photo is torn in half between the father and daughter. This could have been done by Angela, showing that the abuse happened when she was young.
In the nearly sepia photo, the father appears to look young himself, wearing a checkered shirt. He has what looks to be a five o'clock shadow and short brown hair.