Investigators are using dogs Wednesday to search the Virginia home of a suspect jailed in connection with the disappeance of a teenage girl. Federal, state and local law enforcement officials have swarmed central Virginia since 17-year-old Alexis Tiara Murphy went missing more than a week ago. Randy Taylor, 48, was arrested Sunday and charged with her abduction — but Murphy remains missing. Taylor’s Lovingston, Va., home is located about a mile from the gas station where Murphy was last seen on surveillance video. Investigators have confirmed that the video shows Taylor at the gas station at the same time as Murphy, who was last seen by her family when she left home Aug. 3. She was wearing a pink blouse, floral spandex pants and brown boots, and carrying a gray purse. An aunt said she planned to travel south to Lynchburg that day. Instead, Murphy’s car, a 2003 Nissan Maxima, was found three days later in the parking lot of a movie theater near Charlottesville, more than 35 miles northeast of Lovingston. The following day, more than 50 law enforcement officials converged on the area, searching for her by ground and helicopter. That was a week ago. “I want to assure her family and the Nelson County community that we will keep looking as long as it takes to find her,” said Nelson County Commonwealth’s Attorney Anthony Martin. Taylor was arrested Sunday and charged with abduction by force, a felony. He appeared in court Tuesday — handcuffed, shackled and wearing a gray jail-issued jumpsuit — where he was appointed a public defender. He is being held at the Albemarle-Charlottesville Regional Jail.