Pop Goes The News – “Motherfucker, you piece of shit. I’m going to get you. I will find you. I promise.”

This is the message Maria Del Mar has for the driver of a vehicle that struck and killed her son in the early morning hours of Feb. 5 and then took off.

Toronto Police said the horrific death of 25-year-old Gabriel del Castillo Mullally on Danforth Avenue is being investigated as a homicide.

“I am broken beyond repair,” Del Mar wrote in a heartbreaking Facebook post. “My beautiful boy with the green eyes was murdered. I can’t live this. I want to die now but can’t. Please help me. Please. My daughter deserves more than what I am now.”

Del Mar, 59, is an actress who starred in the ‘90s series TekWar and on Blue Murder in the early 2000s. She has had guest roles on a long list of shows, including Frasier, 24, Murdoch Mysteries and Flashpoint.

Gabriel is her son with ex-husband Guy Mullally, a screenwriter and co-creator of the popular Canadian series Street Legal who currently works as a professor at Humber College. The couple also has daughter Paloma, a student at McGill University.

“He was very bright, he was musically talented, he was generous and kind and hugely protective of those he loved,” Mullally told CTV News, in a statement via email. “All that he was and all that he will ever be vanished in the blink of an eye, and somewhere out there, there is a frightened young man who must now live with this terrible thing that he has done for the rest of his life.”

Gabriel’s uncle is Andrés del Castillo, one-time lead singer of Canadian pop-rock band Eight Seconds.

A GoFundMe campaign has been set up to help Del Mar through “this unthinkable time.” As of Monday evening, it had raised more than $20,000.

Police are appealing to witnesses and to anyone who may have video of the incident to come forward.

“I am in shock and my world is upside down,” Del Mar shared. “I am living my single worst nightmare. This perp got in his car and purposely drove on to the sidewalk to kill my son.

“I will not rest. Ever. He will be found. And prosecuted. I will never be the same.”

This post has been updated since it was first published.