Luis Fernando Castillo Villafana, 30, was last seen around noon on April 7, 2008, leaving his home near West Hatcher Road and North 15th Avenue in Phoenix with his girlfriend, 28-year-old Rosario Imelda Pacheco-Flores. The couple vanished together and could not be contacted thereafter. At the time, Luis wore a blue striped shirt and gray pants.

He is described as a Hispanic male, 5 feet 8 inches to 5 feet 10 inches tall, about 140 pounds, with black hair, brown eyes, several tattoos including a skull on his left elbow, a nude woman on his upper left arm, the words smile now on his left forearm and cry later on his right forearm, plus an unknown chest tattoo and a scar on his head. The joint disappearance raised immediate concern and investigators have treated foul play as a possibility; their trail later went cold and both remain missing.

If anyone knew Luis or Rosario, or has information about their movements in April 2008, please come forward.