A 22-year-old Caledon, Ont., man found guilty of impaired driving in a crash that killed a father and his teenage daughter in 2012 has been sentenced to five years in prison.

Sabastian Prosa was convicted in June of 12 charges in connection with the accident, including two counts of impaired driving causing death, two counts of criminal negligence causing death, one count of impaired driving causing bodily harm, along with seven other offences.

On Aug. 5, 2012, Prosa, then 19, was behind the wheel of an SUV that was travelling in the wrong direction on the QEW eastbound to Highway 427 northbound.

The SUV struck a minivan, killing Jayantha Wijeratne, 49 and his 16-year-old daughter Eleesha. Wijeratne’s wife was also in the vehicle at the time of the head-on collision and was seriously injured.

The family was returning from a vacation in Florida.

“No sentence that I impose can undo the tragic consequences of this collision or compensate for the loss of the lives of Jayantha and Eleesha and the permanent injuries suffered by Antonette,” said Justice Glenn Hainey.

Hainey also banned Prosa from driving for eight years upon his release.

But the Wijeratne family says justice has not been served, calling the sentence “infuriating and ridiculous.”

Brian Wijeratne, Jayantha’s son and Eleesha’s older brother, said three to five-year sentences for impaired driving causing death are too lenient and do little to deter people from driving drunk.

“I ask all Canadians, do you honestly believe this is real justice received for the deaths of two people and injuries to another? Because I don’t,” he said.

The Wijeratne family is now calling for tougher drinking and driving laws.

“As a mother who has lost a child, as a wife who has lost a husband, and as a severely injured victim of drunk driving, I now plead earnestly to the authorities responsible to introduce long-overdue impaired driving amendments before it impacts another family,” Antonette said after the sentencing.

“(Prosa) got only five years,” she said. “We got life sentencing three years ago.”

The Wijeratne family also extended its condolences to the Neville-Lake family, who lost three young children and their grandfather two weeks ago after a collision involving an alleged drunk driver in Vaughan, Ont.

With a report from Zuraidah Alman