Three hours after his father was convicted of killing his mother, Thomas Peterson wrote on his Facebook page that he was "extremely disappointed."
"During the past 5 years...I got to see full grown adults act like children, and now they are parading around my front door," Peterson wrote about 6 p.m. Thursday. Just before 3 p.m., the much-publicized murder trial of his father, Drew Peterson, ended with a guilty verdict.
Thomas Peterson testified at the trial. He was the last defense witness called to the stand.
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Thomas Peterson testified that he never suspected his father killed his mother, that Drew Peterson was "very, very shaken" after his third wife—and Thomas Peterson's mother—Kathleen Savio turned up drowned in her dry bathtub in March 2004, and that he'd "never seen anyone so sad" as his father in the wake of his mother's death.
Thomas Peterson sounded pretty sad himself in the wake of his father's murder conviction.
"Who do I have left?" Thomas Peterson wrote on his Facebook page.
According to his post, Thomas Peterson has returned to the Philadelphia area. He attends college at the University of Pennsylvania.
Thomas Peterson's Facebook post went on to say:
"Who do my siblings have left? Oh yeah...the pastor, the lawyer, my aunts, and all of my mom's friends who LISTENED to my mother's pleas and DIDN'T do anything about it. Now she is dead, and you went forth to break the Constitution to blame my dad. I'm sorry, but that doesn't seem very believable to me...but since the rest of the world thinks otherwise, this is your fault, you should have come forward earlier. Now, I have a broken family without a salary, and some woman who sees it important to bully me over the internet because of my Dad. I hope you are all happy."
When he's not at college, Thomas Peterson, his younger brother and two younger half-siblings live with his older half-brother Stephen Peterson.
Stephen Peterson moved into his father's house after he and his wife Teresa divorced. According to sources, he has taken care of his younger half-siblings for the three years and four months their father has been in the Will County jail.
Stephen Peterson is the son of Drew Peterson and Carol Hamilton, his first wife.
Stephen Peterson lost his job when he was fired from the Oak Brook Police Department in February 2011. Stephen Peterson had let Drew Peterson stash some guns at his North Aurora home before the Illinois State Police got around to searching his father's house in Bolingbrook.
Even though he's in jail—and now prison bound—Drew Peterson pulls in a pension of about $6,000 a month.