Chad Cottrell, Rockville, appeared in court March 6 in Noblesville to enter a guilty plea of killing his wife and two stepdaughters.
A trial is tentatively scheduled for March 23 and Cottrell faces the possibility of the death penalty if convicted.
During court proceedings, Judge William J. Hughes ordered separate psychiatric evaluations of Cottrell in order to determine if he was competent to plead guilty.
Cottrell is scheduled to return to court this Friday where he will learn if the judge will accept his plea.
Cottrell is charged with the 2005 murders of 29-year-old Trisha R. Cottrell, and her daughters, 12-year-old Brittany R. Williams and 10-year-old Victoria L. Williams.
The three were found dead in their rural Rockville home in October 2005.
Family members discovered the bodies of the victims, which resulted in a search for Cottrell.
He was later detained in Minnesota after a 28-hour search and was extradited back to Indiana.
Several area school corporations, including Clay Community Schools, were under lockdown following the incident, as officials believed other family members were in danger.
The lockdowns, however, were lifted following Cottrell's arrest.
The trial was moved to Hamilton County due to publicity surrounding the killings.