A former member of the Canadian Armed Forces has been found guilty of first-degree murder in the 2009 death of makeup artist Pina Rizzi.

A jury came down with the verdict for Jean-Philippe Tremblay in a Montreal courthouse on Friday. The 28-year-old was sentenced to automatic life imprisonment for beating and killing 47-year-old Rizzi, whose body was found burned and wrapped in a carpet in a shed behind an auto repair shop in August, 2009.

The case remained unsolved for years, but in 2013 Tremblay was arrested and charged with first-degree murder in connection with Rizzi’s death.

During the trial, the jury watched Tremblay’s videotaped police interrogation, in which he describes meeting Rizzi in downtown Montreal one night, before ending up at a shed behind an auto repair shop. Rizzi says during the interrogation that he lost his “temper” and pushed and punched Rizzi during their encounter.

Rizzi, he said, was pressuring him to have sex but he felt embarrassed because he could not perform.

“I began punching her. I didn’t stop,” Tremblay is heard saying. “I grabbed something and hit her hard.”

The defence argued that while Tremblay admitted to killing Rizzi, he said that the death was accidental, and that Rizzi attacked Tremblay first.

Tremblay’s lawyer had been seeking a conviction of second-degree murder or manslaughter.

It took two days for the jury to reach the verdict.

With files from CTV Montreal