DENVER (CBS4)– Police used DNA found inside a baseball cap to arrest a murder suspect in connection with a deadly shooting outside the Cold Crush nightclub.

Denver rapper Boss Goodie, also known as Tyrone Adair, was shot and killed outside the club in Rino in October.

Police investigated a deadly shooting in the RiNo neighborhood on Monday morning (credit: CBS)

Police investigated a deadly shooting in the RiNo neighborhood on Monday morning (credit: CBS)

According to the arrest affidavit, DNA from a baseball cap left inside the club helped police identify and arrest Arnold Mortis.

(credit: CBS)

(credit: CBS)

New technology called Shot Spotter picked up the gunfire and alerted police to the shooting.

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