After the victims were discovered Tuesday morning, authorities launched a manhunt for Bernard, who was said to be armed and dangerous.

Danville Community College in Danville, Virginia, was under lockdown Tuesday as a \"precautionary\" measure after Bernard, who was a student there, was identified as the suspect, according to the Danville Police Department.

Pittsylvania County Public Schools also went on modified lockdown. Superintendent Mark Jones told ABC News all outside doors were locked and monitored, all classroom doors were locked and no students were allowed in hallways without a chaperone.

\"PHOTO:
Pittsylvania County Sheriffs Office
PHOTO: Matthew Bernard, 18, of Keeling, Virginia, was arrested on three counts of first-degree murder.
>

ABC affiliate WSET of Lynchburg, Virginia, was in a media staging area at the scene in Keeling Tuesday afternoon when suddenly Bernard, who wasn't wearing any clothes, ran out from a nearby wooded area and attacked a church groundskeeper then fled again.

\"I saw a male, tall skinny male, with no clothes on running around,\" a woman told local reporters. \"He took off running.\"

Authorities chased Bernard down the street and were able to apprehend the teen, who was taken to a local hospital for treatment, according to WSET.

It's not clear why he was found without clothes, the sheriff said Wednesday.

Bernard has not yet appeared in court.

ABC News' Darren Reynolds contributed to this report.

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