No sentence enough for Holly's killer, say parents

"Children are getting into relationships much younger, they can be victims of domestic abuse," Ms Trussler said.

She added more needed to be done to educate people about domestic abuse.

"We need more education, not just for children but for teachers and parents.

"We talk about safe relationships but often about being abused by family members, but don’t talk about when they (children) are in a relationship and looking out for red flags."

She and her husband Lee have been raising money to install bleed boxes - to help deal with critical bleeds - in public areas.