Someone saw Lucas Cassidy drop the gun inside a bathroom at the Amalie Arena on Wednesday night and notified authorities. When a Tampa police officer confronted Cassidy, he told her he had a gun in his pocket.
Police say that because Cassidy has a valid concealed weapon permit, he will face a second-degree misdemeanor charge of bringing a gun to a sporting event, rather than a felony charge. Police say he wasn't screened properly when he arrived at the arena.
A phone number was not immediately available for Cassidy.
The Lightning won Game 3 of the Eastern Conference semifinals 2-1 and are one game from sweeping the Canadiens.