(Image via facebook.com/HelpFindandBringHomeCraigandDiego) Kidnapping is one of Mexico’s most lucrative shadow-industries, with a startling 72 cases per dayÃ‚Â estimated by one 2012 study. So when a pair of foreigners with money mysteriously disappear, it’s hard not to assume the worst. On May 8th, a Canadian martial arts instructor named Diego Hernandez ”” who had relocated to Puerta Vallarta, Mexico, two years ago ”” vanished along with his business partner, an American named Craig Silva. The two men had just promoted an MMA event in Puerta Vallarta, and were last spotted in Silva’s black 2003 Chevy Trailblazer, which has since been recovered by Mexican authorities. Hernandez’s mother now suspects that a kidnapping took place, and that somebody close to the men might have been involved. The Huffington Post passes along more details: Reached in Puerto Vallarta, Hernandez’s mother, Melissa Canez, said her son and Silva had been planning to withdraw money from Silva’s account to pay for some of the event’s expenses. Soon after they obtained the money, they dropped off Silva’s girlfriend at a local university and intended to pick her up after class, she said. Canez said she suspected the two men were kidnapped when she was told the next day that they did not return to pick up Silva’s girlfriend… As soon as she said they hadn’t come back and they didn’t answer their phones, for me, I knew somebody had my son against his will because he would not do that. He wouldn’t just take off. The online newspaper Noticias PV says Puerto Vallarta’s director of public safety, Silvestre Chavez, didn’t learn of the men’s disappearance until five days later and has launched an investigation.