Three teens, 14, 15 and 16, have been detained in the brutal and fatal beating of a vagrant in Hatillo last May.
Judicial police conducted raids early Thursday to make the arrests.
The vagrant, a man with the last name of Araya, was well known in the area around the Escuela de Sagrada Familia. He was set upon between 8 and 10 p.m. May 18 by assailants who struck him repeatedly with an iron pipe, a board and even the butt of a pistol, said the Judicial Investigating Organization.
Agents said there was no apparent motive for the killing. Araya was 31.