Family and friends held a vigil Wednesday for a South Jersey high school senior who has been missing since Monday. Sarah Townsend, 18, left her home in Florence Monday morning to drive to Allentown High School, where she was about to complete her senior year, The Philadelphia Inquirer reported. Her boyfriend found her car hours later in Green Acres Park in Burlington, the ignition still on and her cellphone and purse inside. At the vigil, her parents tried to keep the event positive, KYW-TV, Philadelphia, reported. \"It\'s OK, honey, come home. I know something is holding you. It\'s alright. Please come home,\" her father, Roy, said, addressing her via the TV camera. Police searched the park Monday and Tuesday, and a group of volunteers conducted another search Wednesday. Relatives printed thousands of missing persons fliers, offering a $10,000 reward for information, the Inquirer said. A cousin traveled to Camden on the light-rail River Line handing them out Tuesday, while an uncle took the commuter train Wednesday from Trenton into New York.