A 26-year-old Brunswick man who had been missing for more than a week was found dead off River Road on Wednesday morning. Daniel Gagnon, 26, who worked as a security officer at Bowdoin College, left his Pleasant Street home the afternoon of May 30 on foot and had not been seen or heard from since, police said. Gagnon’s body was discovered in a densely wooded area off River Road in Brunswick just before 11 a.m.