Two brothers, Roberto Enciso Castillo, 45, and Juan Enciso Castillo, 41, were found fatally shot at a residence on Waldon Road in Menifee, California, on August 13, 2017. The shootings were reported just before 11 p.m., and the Riverside County Sheriff’s Department opened an immediate investigation.

Investigators identified 39-year-old Jesus Sanchez Ponce of Mecca as the primary suspect and charged him with two counts of murder; he remained at large and was last seen driving a brown 2007 GMC Sierra pickup with California plates. Gustavo Perez Iturriaga, 43, of North Shore was arrested and charged as an accessory after the fact, pleaded not guilty, and was held on $500,000 bail at the Cois M. Byrd Detention Center in French Valley. Authorities described Ponce as armed and dangerous; a motive for the killings was not immediately clear.

If anyone knew the Enciso Castillo brothers, their routines, or has information about Ponce’s whereabouts on or after August 13, 2017, please share what you know.