It was an emotional morning Friday as a Regina court heard from a friend of 16-year-old Hannah Leflar's killer.

The girl, whose name is protected by a publication ban, told a sentencing hearing she became friends with the 16-year-old boy after his breakup with Leflar.

The two exchanged Facebook messages in September 2014, in which the teen told the girl he wanted to become a serial killer and that he wanted to kill Leflar. The two exchanged jokes about it.

When asked about the conversation on the stand, the girl tearfully testified that she never meant any of it, and would never have hurt anyone.

Leflar was killed in her home in January 2015.

The Crown is seeking an adult sentence for the boy, who pleaded guilty to first-degree murder earlier this year.

A second teenaged boy, who pleaded guilty to second-degree murder, is expected to be sentenced in September. He originally faced a charge of first-degree murder.

CTV Regina’s Jamie Fischer was at Day 5 of the sentencing hearing: