Heather Mack, stands at the police district headquarters after she was brought in for questioning in relation to the death of her mother, in Bali, Indonesia, Thursday. Pic: AP.

BALI, Indonesia (AP) — Police on the Indonesian island of Bali say an American couple arrested in connection with the death of the woman’s mother could be charged with premeditated murder, which carries a maximum penalty of death.

Nineteen-year-old Heather Mack and her 21-year-old boyfriend, Tommy Schaefer, both from Chicago, were arrested Wednesday, a day after the body of 62-year-old Sheila von Wiese-Mack was found stuffed inside a suitcase in a taxi parked at an upscale hotel in the island’s exclusive Nusa Dua section.

The couple were charged with murder Friday. Col. Djoko Hari Utomo, chief of police in Bali’s capital, Denpasar, said Saturday police had enough evidence to charge them with premeditated murder.

An autopsy Saturday found that von Wiese-Mack died of asphyxiation from a broken nose bone resulting from a blunt blow.

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