On the morning of January 31, 2017, 34-year-old Mark Reynoso and his girlfriend, 28-year-old Maria De Santiago were found shot to death just outside their home on South Main Street in Mammoth, Arizona. A later, more frantic 911 call from relatives led to the discovery of the bodies.

Investigators say the suspect or suspects may have arrived and fled in a midsize sedan or pickup truck. Reynoso was awaiting trial on manslaughter charges related to a fatal car crash two years earlier; some have speculated a connection but law enforcement has not confirmed any direct link. No arrests have been announced and no suspects have been publicly identified. A substantial reward is being offered and both families have publicly asked for information.

If anyone knew Mark or Maria or has information about activity around South Main Street that morning, please come forward.