Just one week before the sentencing of their daughter’s killer, the family of Kaylin Gillis is marking the young woman’s birthday.

Gillis was shot and killed as she rode in an SUV that had driven up Kevin Monahan‘s Hebron driveway by mistake.

A jury needed less than two hours last month to find Monahan guilty of her murder. He faces up to 25 years to life in prison when Judge Adam Michelini sentences him next Friday, March 1.

After the jury rendered its verdict, the judge initially proposed sentencing Monahan on Feb. 23, which is Gillis’ birthday. However, one of the attorneys had a conflict.

The judge will allow family and friends of the Gillis family to wear clothing or buttons at the sentencing to show their support.