Deputy Porter was one of the longest-serving sworn deputies in the agency, known for his steadfast commitment, integrity, and decades of honorable service to the citizens of St. Mary’s County. He was a trusted colleague and a deeply valued member of our Sheriff’s Office family.
"This is a heartbreaking day for our agency,” said Sheriff Steve Hall. “Deputy Mark Porter was dedicated to others; for him, policing was his life. His legacy is one of quiet strength, faithful service, and unwavering duty. We are devastated by his loss and hold his family, friends, and fellow deputies in our thoughts and prayers.”
Deputy Porter, 60, served St. Mary’s County for more than 34 years before retiring in 2022. Following a brief break in service, he returned as a contract deputy and continued to serve until his passing.
In accordance with agency protocols, support services have been made available to members of the Sheriff’s Office. Funeral and memorial arrangements will be shared once they are finalized.
At this time, Deputy Porter’s passing appears to be medically related. However, as with all line-of-duty deaths, the circumstances will be reviewed in accordance with state protocols and standard procedures. No foul play is suspected.
The St. Mary’s County Sheriff’s Office asks the community to join us in honoring Deputy Porter’s life and service. Maryland State flags at Sheriff’s Office facilities will be lowered to half-staff in his memory.
Announcements regarding funeral and memorial services will be shared once arrangements have been finalized in coordination with Deputy Porter’s family.
For those wishing to express condolences or support, a memorial tribute will be available in the lobby of the Sheriff’s Office Headquarters at 23150 Leonard Hall Drive, Leonardtown, MD.










