The young American couple accused of murdering the girlfriend's mother and stuffing her body into a suitcase could potentially face the death penalty in Indonesia if found guilty of a premeditated murder charge.

Heather Mack, 19, and Tommy Schaefer, 21, have been held since Friday after a taxi driver in Bali discovered a suitcase in his trunk with the body of Sheila von Wiese-Mack, Heather's mother, stuffed inside. The couple had alleged that von Wiese-Mack was murdered by robbers.

The chief of police in Denpasar, Bali's capital, said there was enough evidence to charge Schaefer and Mack with premeditated murder, the Associated Press reports.

According to Saturday's autopsy, it was discovered that von Wiese-Mack "died of asphyxiation from a broken nose bone resulting from a blunt blow." If found guilty, the maximum penalty for Mack and Schaefer in Indonesia would be the death penalty.

[Image via AP]