Police say probe into crash that killed 4, including 2 workers, facing 'forensic challenges'

Two of the people killed in a fiery crash on Main Street East on Saturday were workers waiting to do maintenance at a nearby Pizza Pizza restaurant, according to the company.

Hamilton police said three pedestrians and the driver of a stolen Toyota Prius died after the vehicle hopped the curb, smashed into a concrete hydro pole and burst into flames.

Investigators have so far not released the identities of the four people killed in the early-morning crash. 

Const. Krista-Lee Ernst said Tuesday it would be up to the victims' families to make their identities public.

The crash involves both "investigative and forensic time challenges," she wrote in an email.

"There are elements of this investigation that take time and need to be processed through the Ontario forensic pathology unit and we continue to work with them closely."

Ernst told CBC Hamilton a male stole the vehicle near Barton and Kenilworth.

Investigators said the male driver was travelling at a "high rate of speed" and headed westbound toward King Street East around 2 a.m. when he lost control.

On Tuesday, bouquets were taped to a pole at the scene. The building beside a Pizza Pizza near the corner was charred and boarded up.

A window on an upper floor was shattered. Some people walking by Tuesday morning stared at the memorial as they passed.

In an email to CBC, a spokesperson for Pizza Pizza said two of the people who were killed were contracted to do maintenance on the restaurant's equipment.

The company is "shocked and saddened" by what happened, wrote vice president of marketing, Adrian Fuoco.

"This is a tragic loss of life and we offer our sincere condolences to the families of all impacted."

Milton Joiner, who identified himself on Saturday as a cook at the restaurant, said the location had recently been sold and the cleaners were coming in ahead of new owners taking it over.