Heather , 19 , and Sheila von , 21 , of Indonesia area confess , police say . They had been charged in the death of Mack 's mother , Mack Weise Sheila von . After a lengthy wait , the cab driver noticed blood and contacted police . Motive was how mother `` was against Schaefer 's relationship with Heather , '' police say . Daughter was at the killing scene when her mother was killed , police say .
Heather , 19 , and Sheila von , 21 , of Indonesia area confess , police say . They had been charged in the death of Mack 's mother , Mack Weise Sheila von . Motive was how mother `` was against Schaefer 's relationship with Heather , '' police say . Daughter was at the killing scene when her mother was killed , police say .