OTTAWA, Kan. (AP) — Lawyers have argued whether statements made by a Kansas man accused in the shooting deaths of four people, including an 18-month-old girl, can be used against him in an upcoming murder trial.

Kyle Flack has been charged with murder and rape after two men, a woman and her daughter were found slain near Ottawa last year. The 28-year-old, who appeared in court Tuesday, has pleaded not guilty.

Franklin County prosecutors are seeking to execute Flack for the deaths of 21-year-old Kaylie Bailey and her daughter, Lana-Leigh Bailey. He faces 50 years in prison without parole in the deaths of Bailey’s boyfriend, 30-year-old Andrew Stout, and his 31-year-old roommate, Steven White.

It wasn’t clear when the judge would rule on motions argued on Tuesday.

Flack’s next court date is in February.