Although no formal cause of death has been given in the death of singer Aaron Carter, a report suggests an old habit of Carter’s may have resurfaced. Carter, 34, was found dead Saturday in the bathtub of his home in Lancaster, California, north of Los Angeles. TMZ reported Monday that police said multiple cans of compressed air were found in the former pop star’s bedroom and bathroom. Prescription pills were also found there, the report said. The site called the report “a big clue.” The last sighting of Carter alive was at 2 a.m. Friday when his housekeeper saw him...