Police say suspect Tommy Schaefer has admitted to murdering his girlfriend's mom, a month after her body was found stuffed in a bloody suitcase in Bali. Schaefer, who was arrested along with the victim's daughter, Heather Mack, confessed to killing Sheila von Wiese-Mack, 62, because "he was hurt and offended by the victim's words in an argument with him," police tell the AP. Witnesses reportedly saw von Wiese-Mack arguing with Schaefer, 21, and Mack, 19, about Schaefer's hotel bill the day von Wiese-Mack was murdered, the Chicago Tribune reports. Police say Mack admitted to helping her beau pack up her mom's body before dropping it in a taxi at the St. Regis Bali Resort.
The pair then returned to the hotel and allegedly tried to break into von Wiese-Mack's safe-deposit box, which housed their passports and some jewelry, police say. They fled when hotel staff wouldn't assist them. Authorities say von Wiese-Mack suffered blows to the head but died of asphyxiation. Meanwhile, her brother William Wiese says his sister had been enthusiastic about the vacation. "I think she was hoping it would be a fresh start for her and Heather," who had a troubled relationship, he says. He suspects things went sour when Schaefer showed up unexpectedly. In a strange twist, Reuters reports Mack is now three months pregnant and has hired a lawyer to represent her unborn child. (Read more Bali stories.)