An approximate timeline of events based on affidavits of probable cause
May 16, 2016
Brent Luyster allegedly pistol-whips his former girlfriend, Erin Cochran, at a home in Cowlitz County.
June 22, 2016
Washougal police take a report from Cochran, who has a no-contact order against Luyster, about his family and associates allegedly trying to locate her and their son.
Around July 1, 2016
Luyster, and his girlfriend, Andrea Sibley, move out of their Longview home and move in with his brother and mother in Woodland.
July 15, 2016
• Zachary Thompson and Breanne Leigh pick up Luyster from a house in Vancouver and drive him to Joseph Lamar’s house southeast of Woodland. Sibley stays behind.
• Two to three hours later, Sibley drives herself to Lamar’s house with two children. She stays outside with the vehicle.
• Leigh, who’s inside the house, hears two shots fired outside. Luyster comes through the front door with a handgun and shoots her in the face. She loses consciousness.
• When Leigh comes to, she finds Knight dead on the couch. She crawls away from the house and drives herself to a convenience store, where she receives help about 10:30 p.m.
• A search warrant is authorized for Lamar’s house. The warrant is served, and Lamar and Thompson’s bodies are found in the gravel driveway. Both died of apparent gunshot wounds to the head. Knight’s body was found inside on the couch. Shell casings from a .45 caliber are recovered from the gravel driveway and living room floor.
• Sibley’s father arrives at Lamar’s house and says his daughter is dating Luyster, and he hasn’t been able to reach her lately.
July 16, 2016
• Sibley's vehicle is located about 4 p.m. by Cowlitz County deputies off of Ocean Beach Highway.
• Luyster emerges from a brushy area and surrenders. Sibley and their toddler son are also located there. They were reportedly camping.