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DENVER — The Denver District Attorney has formally charged the man who was accused of making threats against four paramedics at Denver Health Medical Center last week.

Matthew Mann, 38, was charged with four counts of stalking after he made repeated credible threats to four command staff members who work in the EMS Division at Denver Health on April 11.

Mann was a former employee at the hospital.

Denver Health was on a modified lockdown after the threats were made. Security personnel were not letting anyone into or out of the facility without proper credentials.

Mann was arrested and later released on $50,000 bond. His next court appearance is scheduled for April 26.