Richard Michael ’Mike’ Ridgell, 52, was serving as a security guard at the Washington Navy Yard on September 16, 2013, when a lone gunman began a deadly shooting inside the facility. A former Maryland State Trooper and two-time Trooper of the Year, Ridgell had continued in security work after his state police career and had served in Iraq advising the Ministry of the Interior. He was fatally wounded while working to protect others during the attack that killed 12 people before the shooter was killed by responding officers.

Investigators determined the gunman acted alone and reported a history of mental health problems, including paranoia and delusions. Ridgell is survived by three daughters; a memorial fund was established to support them. Is there anyone who knew Mike or has memories to share about him and his service?