WTHR staff
Indianapolis, Feb. 11 - During a Friday morning court hearing more details came out regarding a possible motive in a triple murder.
Kenneth Allen's uncle tells our partners at The Indianapolis Star that Allen was angry with his grandfather because he wouldn't give him money. Ronald Bradley says his nephew wanted the money to fuel a gambling habit.
Bradley also says Kenneth Allen blamed his grandparents for his long-running financial problems and had promised to kill them.
Bradley says he wants the death penalty in this case, but Marion County Prosecutor Carl Brizzi says it's too early to make such a decision.
Kenneth and Kari Allen are expected back in Indianapolis Friday night, they'll appear in court Monday morning.
Twenty-nine-year-old Kenneth Allen and 18-year-old Kari Allen have waived extradition back to Indianapolis.
Police believe Kenneth Allen murdered his mother and grandmother and then, with the help of his sister Kari, transported the bodies from a Noblesville apartment to a home on Linwood Avenue in Indianapolis where they killed their grandfather and buried all three in the basement.
The triple murder crime scene moved to the Noblesville apartment Thursday morning. That's where the brother and sister say they killed two of the three victims.
Noblesville police guarded the apartment.
Captain Brad Arnold says, "We want to limit the access to the scene so we don't tamper or accidentally disturb the evidence that is inside."
St. Charles, Missouri authorities say Allen and Kari confessed to killing their mother and grandparents. Investigators believe Kenneth stabbed his mother and suffocated his grandmother at the apartment.
First crime lab workers videotaped the apartment location both outside and inside, then spent all day collecting evidence from the apartment.
Neighbor Janelle Beckom is shocked about the murders. "It's unfortunate, especially for the families that have to deal with this loss at one time."
St Charles Authorities uncovered the murders after stopping the brother and sister in a rental car. They drove I-70 west to Las Vegas, reportedly to go on a gambling spree.
"It's really tragic over money, over anything but over money," says Beckom, "gambling, going to Las Vegas."
The two suspects told Missouri authorities about burying their mother and grandparents under concrete.
Hazardous materials workers removed the concrete in crates due to contamination from their remains.
Part of the murder investigation includes talking to people who know the siblings. Police talked to Kenneth Allen's ex-wife. She went to his mother's Noblesville apartment but made comment about the case.
Meantime, investigators continue to collect evidence from both crime scenes while getting their two prime suspects back to Indianapolis.