Several former friends and classmates of Parkland shooter Nikolas Cruz have come forward and detailed his past threatening behavior. In a recent report, one student said he was repeatedly threatened and attack by Cruz when he started dating the suspect’s ex-girlfriend. 

According to a report by Buzzfeed News, Enea Sabadini, 17, received multiple threatening messages on Instagram from Crux.

“I’m going to f----ng kill you,” Cruz wrote Sabadini last year. “I’m going to watch you bleed.”

Cruz also called Sabadini homophobic slurs and said, “You have no idea what I’m capable of.”

In addition to the frightening direct messages, Cruz sent a picture of his weapons arsenal to further prove his capabilities. One of the weapons pictured was an AR-15, the same weapon Cruz used when he fatally shot 17 students and adults at Marjory Stoneman Douglas High School.

The messages began after Cruz and his ex-girlfriend broke up around April 2016, Buzzfeed reported. Sabadini started dating her in August, and Cruz began harassing the teen.

Sabadini told Buzzfeed he also had two physical fights with Cruz after the breakup.

“[He] called me a n----r multiple times,” Sabadini said. “He was also trying to stab me with pencils.”

After one fight between Sabadini and Cruz at the school, a student said she warned administrators to check Cruz’s bag because: “I know that he’s brought weapons to school.” Several other students, and one adult at the school, said they were also aware of the threats, according to Buzzfeed.

Even after Sabadini and Cruz’s ex had broken up, he still received the messages from Cruz, according to Buzzfeed.

“You took my ex I been depressed,” he wrote. “I been drinking and all I think is hurting you.”