Michael J. Emmert, 66, was pronounced dead Tuesday near the town of Darlington, about 30 miles northwest of Indianapolis.
Brandi Worley, 31, admitted to killing her 7-year-old son, Tyler, and 3-year-old daughter, Charlee, in November 2016.
Brandi Worley used a combat knife to kill the children and stab herself because she didn’t want her husband to take their children.
Thirty-year-old Brandi Worley of Darlington has pleaded not guilty to murder charges.
30-year-old Brandi Worley is now charged with two counts of murder.
In a 911 call, Worley stated “I just stabbed myself and killed my two children,” according to police.