(MASON, OH) -- The case against a Mason father accused of killing his wife and 4 children moves forward on Tuesday.
A preliminary hearing for Michel Veillette is set for 5 p.m.
He faces initial charges of aggravated murder, aggravated arson and murder.
Veillette is in jail for allegedly stabbing his wife to death and setting fire to his Mason home killing his 4 children, all under the age of 8.
Attorney Tim McKenna says his client doesn't tell the same story as the Warren County Sheriff's Office about how the crime happened.
"I would simply say no, it's not. I mean he has his side of the story. My concern as an attorney is you know, these alleged statements that he may have made, he did not have an attorney present, he was under heavy medication, he was seriously wounded. I don't know how much credence you can give to those statements," said McKenna.
McKenna says Veillette is going to plead not guilty.
Meanwhile, investigators continue to build their case.
A team from the Mason Police Department and the prosecutor's office returned from Windsor, Canada where they interviewed family members. They could be going back.