WILLMAR (AP) - A grand jury has indicted two teens on first-degree murder charges in the strangulation and stabbing death of one of the male's grandmother in central Minnesota.

The indictments are filed in Kandiyohi County against 19-year-old Brok Junkermeier and 17-year-old Robert Warwick. Both are being held on unconditional bond of $2 million.

The indictment says Warwick is the mastermind of a plan to rob and kill his 79-year-old grandmother, Lila Warwick last July at her home east of Willmar. Court documents say the teen believed his grandmother had a safe in her home containing more than $40,000.

The grandmother's body was found by law enforcement officers checking on her welfare after she missed a meeting at Redeemer Lutheran Church, where she was a volunteer.

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