A Weaverville teenager who was 16-years-old when he stabbed a man to death in a jealous rage has been murdered in prison. 19-year-old Michael Hastey murdered 28-year-old Nathan Purdue in 2019 because he thought Purdue was making advances towards Hastey’s 17-year-old girlfriend. The three of them had spent some time together earlier in the day. She and Hastey were at Hastey’s home in Weaverville when she told him she had kissed Perdue, who asked her to call him if things didn’t work out with Hastey. Upon hearing that, Hastey grabbed a knife, stormed out of the house to find Purdue and stabbed him multiple times at the corner of Mill and Main Streets. While awaiting trial, Hastey was incarcerated in juvenile halls in Tehama, Shasta, Trinity and Tulare Counties, but he repeatedly assaulted other juvenile inmates, as well as a custodial officer. Last May Hastey was given a sentence of 25-years-to-life in state prison. He was serving his sentence at High Desert State Prison in Susanville, where he was attacked by two other inmates in the exercise yard on Friday. Prison officials say the attackers were Christopher Dolan, an assault convict from Ventura, and Michael Ellison, a Riverside County man convicted of second degree murder who has repeatedly attacked other inmates in various prisons. Hastey was attacked with makeshift weapons. Guards used tear gas and batons to stop the attack, but Hastey could not be saved.