The two victims are identified as Adelanto residents Ealy Davis and Shameka Reliford.
On December 11, detectives served a search warrant in the 10400 block of Cimmeron Trail in the City of Adelanto. William Anthony Jacobs and a 15-year-old male were detained and later arrested.
On December 12 detectives located a third suspect, Forrest Eugene Taylor at a residence in Los Angeles. On Monday, December 14 detectives located and arrested a 4th suspect, James Ellis in the city of Perris.
The investigation continues. Anyone with information is asked to contact Detective John Gaffney or Sgt. Tony DeCecio with the San Bernardino County Sheriff's Homicide Detail at (909)387-3589.