Hannah Leflar's killer mused about becoming 'serial killer' in online messages

New testimony at the sentencing hearing of Hannah Leflar's killer reveals the man spoke with a now-18-year-old girl online about harming Leflar, months before she was killed.

In online messages, man told friend he was obsessed with Leflar, missed her and wanted to hurt her

This photo was taken at Hannah's 16th birthday party. (CBC)

New testimony at the sentencing hearing for the man who killed Hannah Leflar revealed he talked about becoming a serial killer.

"I kinda really want to kill Hannah," the man told a now 18-year-old woman in a Facebook message.

Testifying at the sentencing hearing's fifth day, the friend of Leflar's killer — who cannot be identified — cried as she recounted messages swapped between the two about Leflar.

She said the man spoke to her about missing Leflar, being obsessed with her and wanting to harm Leflar.

"I think I might become a serial killer," he told the woman three months before Leflar was killed. 

The woman said she didn't think the man was serious when he told her he planned to kill Leflar. During the messages, the woman told the man she would "smash Hannah's face into the pavement" but said it was only teenage "trash talking."

"See me becoming a murderer is a better idea because I know it would be done," read one message the man sent the girl.

The hearing will determine whether or not the 19-year-old man will be sentenced as an adult. He was 16 at the time of the killing and cannot be identified under the Youth Criminal Justice Act.

On Thursday, a community youth worker involved with the Intensive Rehabilitative Custody Supervision program testified.

Elizabeth Christoffel, who wrote the man's pre-sentencing report, assessed the accused's potential for re-offending through looking at eight different areas — six of which were marked as areas of concern. The risk assessment tool determined there was a 54 per cent chance he would re-offend.

One concern was the man did not seem to recognize the severity of his actions. 

Jennifer Peterson, provincial co-ordinator for the program, said justice officials have decided the man is not a candidate for the IRCS program due to his age and treatment needs.

With files from Adam Hunter