Prosecutors in Utah are vowing to seek the death penalty for the accused assassin of conservative activist Charlie Kirk. On Tuesday, the accused shooter, Tyler Robinson, made his first court appearance by video from the Utah County Jail. He is being charged with aggravated murder and six other counts for fatally shooting Kirk last week at Utah Valley University.

Prosecutors also released the transcripts of text messages that Robinson allegedly sent to his roommate, who was also his romantic partner. In one of the alleged messages, Robinson wrote about Charlie Kirk, “I had enough of his hatred. Some hate can’t be negotiated out.” Robinson reportedly also left a note for his roommate that read, “I had the opportunity to take out Charlie Kirk, and I’m going to take it.”