Secrets of Oregon school shooter's broken family — and violence that began before he was even born

John Sr. came home from a bar drunk, pulled a knife on her, and allegedly punched her in the face. 16-year-old Griffin John II killed three school kids and a teacher in Bend, Oregon last Thursday, and the New York Post found some court documents about his father. Here are some of the most chilling details. The dad, Griffin John Sr., was a violent alcoholic who abused his mother before Griffin was born. The mother is Shantae Nickerson from a tiny paper mill town on the west coast of Oregon. The dad, Griffin Sr., was from the next town over and a member of the Siletz native tribe. Now, Shantae married this guy, Griffin John Sr., when she already had another kid with another man. She didn't have custody, but this was apparently a problem because on Halloween night 2009, John Sr. came home from a bar drunk, accused Shantae of being still in love with her ex, pulled a knife on her, and allegedly punched her in the face. He also threatened to kill himself. This was right around the time she would have gotten pregnant with a young Griffin John, either just before or just after. John Sr. pleaded guilty to harassment. He got four years probation. We found a handwritten note he wrote to the judge swearing he wanted to get clean, turn his life around, provide for his family. And a few months later, Shantae actually asked the court to lift a no contact order and let the dad come back into her life so that he can, quote, know his son. Apparently, that didn't work out because documents show Griffin started blowing off his rehab and was flagged for using marijuana and boozing again. He was arrested in a bar parking lot in 2012. He allegedly punched an officer in the chest and headbutted another police officer. There's also a medical report that mentions a wound on his hand from punching through a car window. Shantae told the court they were not living together by this time, by 2012, And I don't know when she moved to Bend, but it seems to have been as early as 2014 because records show a fishing license registered to an address in Bend. Her son would have been about three or four years old at that time when they were out there. I tried to find John Griffin Sr. I went to his previous listed addresses, but he wasn't there. Nobody I spoke with around town knew him. Our records have him as not deceased, but honestly, I have no idea where he is or if he's even still alive.