ApVirginia Tech campus, Blacksburg, Va.NovemFort Hood, Texas - 13 dead, 30 injured (including gunman).decemPortland, Oregon - 2 dead (including gunman).Nevertheless, Pfohl seemed to think he had betrayed Hulbert, and seemed to be sorrier about that than about his role in the murder. In a written apology, he asked Robert Schwartz to give him some 'sign' that he was 'well.' He also excused Hulbert on the basis that Hulbert believed he was right to do what he did. Having called his involvement a 'big oopsy' on the day he was arrested, he admitted that he vaguely realized what he was getting into. He was aware that Hulbert was going to kill someone and he did not want to be an accessory to murder. They met friends there, and Pfohl told someone that he was scared to take Hulbert where he wanted to go. In a written statement, Pfohl admitted that he and his girlfriend, Katherine Inglis, drove to the Springfield mall on the night of December 8. He faced a maximum of 21 years and four months in prison. He had agreed, he said, to drive Hulbert to the home where the murder took place, and he felt ashamed about his part in the crime. On December 20, Michael Paul Pfohl pleaded guilty to second-degree murder, admitting that he had assisted two friends with the murder of Robert Schwartz a year earlier.

Strain theory and serial killers