Murphy is being held without bond at the El Paso County jail.
A 19-year-old Colorado Springs man who has been charged with two counts of murder in the deaths of his two siblings was arrested in March in Effingham, Ill., for setting his parents' SUV on fire in a field, authorities said Tuesday. He was in serious but stable condition after he was stabbed during the confrontation with his son, Black said.
Jefferson is being treated for non-life-threatening wounds.
Murphy's father was able to restrain him until officers arrived at their home in the 900 block of Carlisle St.in Colorado Springs. In March 2017, the teen was arrested for setting the family auto on fire at a Cracker Barrel restaurant.
In a police document, Malik Murphy revealed he often had "homicidal ideations", and planned to kill his family and bury them in the backyard so he could be alone at the home.More news: 12, including 11 security personnel, killed in terror attacks across Pakistan
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"That's not unusual", he said referring to an accused arsonist watching the fire he set burn.
By the time he was near Effingham, he had run out of gas, so he poured what little gas he had in the rear of the vehicle and set the auto on fire.
The 19-year-old, Malik Vincent Murphy, has been arrested on suspicion of first-degree murder.
Effingham County State's Attorney Bryan Kibler said Wednesday that he saw little reason in March to pursue charges against Malik Murphy. Months before the Arson case, he had taken several pills with alcohol and was found incoherent on an individual's front porch.