A Chicago woman serving in prison overseas says she believes her slain mother lied and falsified court documents to get control over an inheritance.

Heather Mack and her boyfriend were convicted in Indonesia in April in the death of her mother, Sheila von Wiese-Mack. She was bludgeoned to death with a metal fruit bowl and her body stuffed into a suitcase at a Bali resort.

A battle over Mack's $1.56 million trust has been ongoing in Chicago. In a letter to a judge, Mack said she believes her mother was trying years earlier to get control over Mack's inheritance from her late father.

Mack tells the Chicago Tribune (http://trib.in/1U3hBSj ) she didn't want to publicly criticize her mother, but has little other choice because her trust lawyers won't investigate her claims.

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Information from: Chicago Tribune, http://www.chicagotribune.com