A 10-year-old Tipton girl was found safe late Tuesday night after police say she was taken by an unknown man while riding her bike. But now police are investigating her great-grandmother's apparently unrelated disappearance. Serena "Renie" Weicht was found unharmed around 11 p.m. Tuesday at the Wendy's restaurant on U.S. 31 in Westfield. She told police a man grabbed her and forced her into his car around 6:30 p.m. She said he drove her around before dropping her off at the restaurant. Noblesville police, meanwhile, are looking into the disappearance of 74-year-old Dorothy Heard, who has been missing since Monday night.