FERNANDINA BEACH, Fla. – A 20-year-old-former Fernandina Beach High School student who was arrested at 2 a.m. Saturday after police said he made written threats to kill people at his former school had been made fun of at the school, a source told News4Jax.

Wesley Twiggs was released on bond after police said he threatened to kill people at the high school.

The former Fernandina Beach High School student ran cross country and was on the track and field team all four years of high school. The photos below came from Flrunners.com.

Someone who knew Twiggs in high school but didn't want to be identified said he was made fun of at school but didn't elaborate. Sources said Twiggs seemed to struggle socially.

According to the University of North Florida's campus newspaper, Twiggs was a student at the university.

According to police, Twiggs confessed to posting two separate threats on an anonymous chat site on Dec. 30, 2018, stating: “My name is Wesley Twiggs and I am going to shoot up Fernandina Beach High School on Jan. 15. I will be on the news....so you better keep these messages, if you want anyone to believe that this conversation took place.”

The threats were reported to the FBI tip line and referred by the FBI to the Fernandina Beach Police Department to investigate.

Before approaching Twiggs, detectives said they first spoke with his parents, who were extremely cooperative.

Based on the evidence gathered, a compelling pattern of escalating and concerning behavior, and his admission of guilt, according to police, Twiggs was charged with a second-degree felony.

Twiggs was booked into the Nassau County Jail at approximately 2 a.m. Saturday and was later released on $25,000 bond.

No firearms or ammunition have been recovered and no evidence was found to indicate that Twiggs had access to firearms or had made actual plans to carry out his threats, although detectives are continuing their investigation.

Nicole Jamieson, an attorney with the Law Office of Bossen and Jamieson, is representing Twiggs and said he is receiving in-patient treatment in a residential facility out of the area.

"As noted by Chief Hurley in his press release, Wesley never had access to firearms or other weapons, and there was no evidence he made an actual plan to harm anyone," Jamieson said in a news release. "In anticipation of classes resuming, both students and parents can be assured that there is no threat of harm to any member of the Fernandina Beach High School community."

Anyone with information about the threats is asked to contact Detective Stephen Moreno at 904-310-3222.