Their father, Patrick McStay, said he believes his son had done business in Tijuana, possibly as recently as December.
"I know he does business periodically," said Patrick McStay. "Some of the smaller fountains he offers are manufactured in Mexico, so he calls down there and has them sent to him."
McStay said he knew a lot about his son's business because he was the initial investor in the company. He also said he knew his son had been to Mexico, or at least to the nearby border towns, late last year to pick up granite countertops for his home kitchen, which he was renovating.