Heather Mack and boyfriend Tommy Schaefer are accused of killing her socialite mother Sheila von Wiese-Mack in Bali . Mack told a court on Wednesday that Schaefer killed her mom in anger after she threatened to kill their unborn baby . The couple is charged with murder, conspiracy to commit murder, kidnapping and illegal possession of firearms. Pregnant Mack , 19-year-old and boyfriend were handcuffed together as they arrived for trial on Wednesday .
Heather Mack and boyfriend Tommy Schaefer are accused of killing her socialite mother Sheila von Wiese-Mack in Bali . Mack told a court on Wednesday that Schaefer killed her mom in anger after she threatened to kill their unborn baby . Von Wiese-Mack 's badly beaten body was found in a suitcase in the trunk of a taxi at the hotel . Pregnant Mack , 19-year-old and boyfriend were handcuffed together as they arrived for trial on Wednesday .