Ronald Williams, 51, was found dead outside a home in the 4500 block of Tallulah Drive shortly after 7 a.m.
Homeowner Saul Castillo said his wife discovered the man’s body on the sidewalk outside his home.
San Antonio Police Sgt. Pat Michalec confirmed that some individuals were being questioned.
Area residents said the victim lived in the neighborhood and was often seen walking between 6:30 a.m. and 7 a.m.