MINNEAPOLIS (WCCO) – A man who is accused of killing his three daughters at their River Falls, Wis., home last month is scheduled to appear in St. Croix County Court on Tuesday.

Aaron Schaffhausen is expected to enter a plea in the stabbing deaths of Amara, Sophie and Cecilia Schafhausen. He is facing three counts of first-degree intentional homicide in connection with their deaths.

The incident came about six months after he and his wife divorced. Schaffhausen had been doing construction work in North Dakota. He was in court more than a month ago when a judge decided there was enough evidence to have the case move forward.

Last week, prosecutors charged Schaffhausen with attempted arson. According to a criminal complaint, authorities said when they arrived to the house to check on the kids, they could smell gas coming from the basement where there was a tipped over gas can.