|Family||Luke Breslin (son)|
Pete had a son named Luke, who was a star-pitcher for his high school baseball team. It was revealed that he had been abusing Luke in order for him to achieve things. When Luke is sent to court for assaulting his best friend, Pete is informed that Luke had started using steroids for a short time, and as a result, he assaults Luke in a bathroom. He then attacks Stabler before being subdued by him.
A few days later, when Stabler goes over to his house to apologize, he discovers that Luke had shot Pete, grazing him in the head, before fleeing. He was rushed to a hospital, where he recovered. Stabler brought in Luke, who had been at his friend's house and threatening to commit suicide when Stabler explained that Pete was still alive. Pete and Luke then shared a hug afterwards. (SVU: "Ripped")
- Luke Breslin (his son; abused repeatedly)
- Detective Elliot Stabler (his former partner; assaulted)