A Hudson couple were tied up, robbed and threatened in their Harmony Drive mobile home Wednesday, authorities said. The victims _ John Wheeler, 62, and Mildred Marlow, 76 _ told deputies that the two male assailants had been staying in a nearby mobile home and had befriended them, said sheriff's spokesman Jon Powers. About 6 p.m. the suspects asked to use the couple's phone. Once inside, they pulled a gun and a knife and threatened to kill the couple, Powers said. The couple were tied with duct tape to chairs, and their phones were damaged. The two males then rifled through jewelry and took an ATM card and the couple's 1990 Mercury Grand Marquis. One suspect left to try the ATM card while the other stayed behind to watch the couple. When the first suspect didn't return immediately, the second became nervous and cut the couple's bonds, Powers said. The couple were able to get a phone working and call authorities about 7:15 p.m. The first suspect was caught driving the stolen car not far from the scene, and the second was still in the house, pretending to be a witness as deputies arrived. The suspects, who were being questioned at press time, weren't identified. The couple refused medical treatment.