A Phoenix man has been charged with killing his wife and son on Wednesday, according to Fox News.

Eugene Maraventano, 63, acknowledged he fatally stabbed both of them. He claims to have killed his wife because he feared she contracted HIV from him, which he caught from prostitutes.

He told investigators that he used a 14-inch kitchen knife to stab his wife, Janet, while she slept. He then stabbed his son, Bryan, 27, when he opened his bedroom door.

Maraventano claimed to have killed his son because he didn't think he would be able to cope with out his parents. He said he thought his son was mentally handicapped because he didn't have a girlfriend, couldn't get a job and played video games all day.

"I killed my wife and I killed my son; I can't kill myself," Maraventano told a 911 dispatcher this past Saturday, according to court documents.

However, the two victims had allegedly been dead since Thursday.

"Police arrived at the house and found Maraventano covered with blood and with wounds to his chest. He was taken to a hospital, and police found the bodies of his wife and son in different rooms of the house," according to The Phoenix New Times, who obtained the court documents.

Maraventano claims to have caught AIDS from New York prostitutes, an area in which he worked previously. The documents didn't say if Maraventano or his wife were HIV positive.

His wife was reportedly sick during the time of her death, so Maraventano thought she had cancer or contracted the disease from him. Once the tests for cancer were negative, Maraventano came to only one conclusion, she had AIDS.

Maraventano also claimed tried to commit suicide a number of ways, but failed.