Brian Thomas O'Sullivan, age 52, of Old Lyme, Connecticut passed away on Wednesday, July 2, 2025. Son of Kevin and Gail O'Sullivan.
A Mass of Christian Burial will be held on Thursday, July 10th at 11am in Christ the King Church, McCurdy Rd., Old Lyme. Calling hours will be held on Wednesday, July 9th from 5-7pm at Fulton-Theroux Funeral Home, 13 Beckwith Lane, Old Lyme. A complete obituary will appear soon.
