Photo: The Canadian Press

Scott Thomas, whose son Evan was killed in the crash, speaks to the media at the sentencing hearing of Jaskirat Singh Sidhu, the driver of the truck that struck the bus carrying the Humboldt Broncos hockey team Tuesday, January 29, 2019 in Melfort,

Several family members of those killed and injured in the Humboldt Broncos crash say they still have one big question: Why?

They want to know why a semi-truck driver barreled through a stop sign at a rural Saskatchewan intersection and into the path of the junior hockey team's bus.

They also want to hear from the driver himself.

"All he had to do was stop," says Scott Thomas of Saskatoon, whose 18-year-old son Evan died in the collision.

"I want to know why. That would be a huge part in me finding forgiveness to understand why."

Jaskirat Singh Sidhu of Calgary has pleaded guilty to 29 counts of dangerous driving for causing the crash north of Tisdale last April. Sixteen people were killed and 13 injured.

An agreed statement of facts says Sidhu was not impaired or distracted and road and weather conditions were good at the time.

After the crash, it was also discovered that Sidhu had 70 violations of federal and provincial trucking regulations and inspection rules. Had he been stopped, he would have been suspended from driving for 72 hours.

"As of right now, I am of the opinion he was probably stressed," Thomas told reporters outside Melfort court Tuesday.

"Clearly he wasn't filling out his log books ... Was his boss in his ear saying he'd better get his ass in gear because he's behind?

"Why is a huge part of what I want to find out. Every one of us will want to know why."

The last of 75 victim impact statements are to be submitted in court Wednesday before lawyers begin sentencing arguments, likely on Thursday.

It's expected Sidhu will also get a chance to address the court. He has yet to speak publicly about the crash although his lawyer has said he takes responsibility for what happened. Sidhu has also wiped away tears during the hearing.

Thomas said he wants to hear directly from Sidhu and even offered to sit down with him someday.

"It might be part of how he needs to go forward too."