Ashley Smith's death ruled a homicide

Ashley Smith

Ashley Smith

Terry Davidson, QMI Agency

, Last Updated: 8:42 PM ET

TORONTO — Ashley Smith's family is calling for a renewed criminal investigation after a coroner's jury decided Thursday her death was a homicide.

Smith, 19, of New Brunswick, choked herself to death in a cell at the Grand Valley Institution in 2007. She was in segregation at the time.

Guards who were present when she died testified at the inquest that they were ordered not to enter her cell to intervene, even though they videotaped her death.

The jury also viewed several shocking videos of Smith during her incarceration, including some of guards in riot gear restraining Smith and having her injected with sedatives, as well as one with images of Smith duct-taped to an airplane seat with a hood over her head.