The court issued a 17-year prison sentence against a driver who caused the death of a mother and her three daughters after hitting them with his car.

The prosecutors requested a 23-year prison sentence for "Robertson," and a lifetime driving ban. Meanwhile, the defense said that "Robertson" should be sentenced to seven years in prison.

"Robertson" pleaded guilty to four charges related to dangerous driving causing death concerning the June 18, 2020, accident that led to the death of "Carolina Chiasolo" and her daughters "Clara, Liliana, and Mila," who are aged between six and one.

However, he denied the other charges, and his lawyers challenged the constitutionality of the Canadian law that sets a legal limit for tetrahydrocannabinol blood concentration while driving.

Ontario court judge "Sandra Caponigro" found that "Robertson" had a blood concentration of 'THC' of 40 nanograms of tetrahydrocannabinol per milliliter of blood about 45 minutes after the accident, which is eight times the legal limit.

The constitutional challenge was rejected last month, and as a result, "Robertson" was convicted of impaired driving causing death.

At the sentencing session last month, "Robertson" apologized for his actions, saying he was "deeply tormented" by what he did and that he will feel guilty for the rest of his life and wants to take responsibility for his actions. At that time, he said: "I wanted to end my life many times, but that would be the coward's way."

"I want to pay for what I did because this family deserves justice."