A five-year-old child, her mother and her grandmother who were on their way home from a fun day at Canada’s Wonderland and a Seneca College graduate who dreamed of travelling were identified as the four people killed in a horrific crash Friday.

Family and friends confirmed the identities of the victims of the Highway 400 crash as police try and piece together the circumstances that led to the deadly collision.

Police have not released the names of the victims, however CTV News Toronto confirmed the identities of those killed as three generations of the same family --5-year-old Isabela Kuci, her mother, 35-year-old Valbona Vokshi, and her 55-year-old grandmother Xhemile Vokshi-- as well as 27-year-old graduate Maria Lipska.

The four were in two separate vehicles involved in a 11-vehicle collision involving three transport trucks. The accident happened on Hwy. 400 near Sheppard Avenue at around 9:45 p.m. on Friday.

The collision – believed to have been caused by one of the trucks -- triggered a fire that was so intense it melted parts of the highway.

On Tuesday, a family member told CTV News Toronto she was in a separate car with her young son behind the Vokshi’s vehicle when the crash occurred.

"My heart is broken,” Valbona’s sister Blerta Vokshi said through her tears. “I can't... Last night was Wonderland… Wonderland, she liked to go to Wonderland and play.”

She too was injured in the pile-up, but she says she remembers the details of the collision.

“I remember everything, I remember,” she said, covering her head in her hands as she broke down sobbing.

Sitting next to her was family friend Katerina Seitaj. As she watched a witness’ video of the wreckage, she said she still feels shocked by the events.

"She was pretty much like a single mom,” Seitaj said of Valbona Vokshi. “There was nobody to help her, just her. She also had to sponsor her family."

Seitaj said she was roommates with the 35-year-old mother for six years. She said the two were best friends.

"She was very hard working. She was kind, she was generous, she was always there for her family, her daughter," Seitaj said. "She loved her daughter to death. She would always say she didn't want her daughter to be an orphan. She took her daughter with her (everywhere)."

A fourth victim has been identified by her employer as 27-year-old Maria Lipska, a recent graduate from the travel and tourism program at Seneca College.

Lipska was travelling in a separate vehicle when the accident occurred.

The Boulevard Club told CTV News Toronto Tuesday that she had “a lovely spirit” was “fun and energetic” and “friends with everyone at work.”

The club said employees are shaken by the news of her death and will have grief counsellors on hand for those who need it.

Though the cause of the collision is still under investigation, OPP Sgt. Kerry Schmidt said that the speed of one of the transport trucks may be a factor. He called the accident “absolutely preventable.”

Investigators believe traffic on the highway had likely been slowing down prior to the crash and that one of the transport trucks likely did not slow down in time causing “a sequence of events.”

“A vehicle driving in the same situation would not be capable of causing this kind of damage,” Schmidt said Monday. “When a vehicle that’s loaded with 18 wheels and 80,000 pounds comes into traffic, that’s when you see this kind of trauma.”

Schmidt said the damage was so extreme that a section had to be repaved before the lanes reopened.

“I’ve never seen a collision of this magnitude and the fact that a fire consumed three of the vehicles, a trailer and two more cars, sadly, we are having a very difficult time even identifying the deceased,” Schmidt said Monday.