The daughter of a Perth man who killed two women in Floreat in May will speak at WA’s march against domestic and family violence on Monday.

Ariel Bombara will address hundreds of people expected to gather in Perth’s CBD for the 34th annual gathering, which will pay tribute to those killed by FDV, as well as support for victims, their families and those who live in fear across the state.

She is the daughter of the man who shot and killed his ex-wife’s best friend, Jennifer Petelczyc, and her 18-year-old daughter in their home before turning the gun on himself.

Ms Bombara bravely faced the media days after the deaths, where she said she was ignored after reporting to authorities that her father was dangerous, while calling for systematic change to protect women.