The man who shot a 17-year-old boy to death Sunday in a gated community in Sanford was a member of Neighborhood Watch, police said Wednesday.



Trayvon Martin, a Miami high-school student, was visiting a relative when he got into an encounter that led to his death, police said Monday.



The shooter, who lives at Retreat at Twin Lakes town houses, told officers he shot the boy, said Sgt. David Morgenstern, a police spokesman. The man, who is in his 20s, was not arrested, but police continue to investigate.



The Orlando Sentinel is not releasing the man's name because he has not been charged.



FOX-Channel 35 reported that the shooter and Martin had been in a fistfight right before the killing. That detail could not be confirmed.



Martin attended high school in Miami. FOX-Channel 35 reported that Martin was visiting his mother in Sanford. Friends said Martin attended Dr. Michael M. Krop Senior High School.



Police Monday notified people who live in Retreat at Twin Lakes, which is near Interstate 4 and State Road 417, that one of their neighbors had been shot to death Sunday night.



The letter says officers will meet with the community in the next few days to answer questions and promises that police will investigate thoroughly



"We realize that this incident is very disturbing for your community," the letter reads in part.



The killing happened about 7:15 p.m. The body was found behind a building on Twin Trees Lane.



sjacobson@tribune.com or 407-540-5981