Matthew Brush pleaded guilty to second-degree murder of Cassandra Kaake in court Monday afternoon.

Brush also pleaded guilty to arson charges.

Kaake was found dead at the scene of a house fire on Benjamin Avenue on Dec. 11, 2014. Police determined the fire was intentionally set.

The 31-year-old was seven months pregnant.

A postmortem examination found that Kaake died of blood loss caused by severe trauma.

In February last year, Windsor police arrested Brush, 27, of LaSalle.

Jeff Durham was the father-to-be. He's been fighting to change the law so people like Brush would face additional charges for killing a woman who is pregnant.

"I feel like the charges have betrayed the reality since the beginning," said Durham leaving the courthouse Monday. "I know that the crown is doing the best that they can with the tools that they have but they don't have tools to charge for...what it is, so it's upsetting, it continues to be upsetting, profoundly upsetting, and any relief that should be available to us at this stage, it's really not a relief because it continues to be pretty hard."

Brush's sentencing hearing is scheduled to begin January 23 and is expected to last five to seven days.