Investigators analyze the scene under the Granville Bridge in February after an engaged couple were killed in a hit and run. (CBC)

The 19-year-old man guilty of the hit-and-run deaths of a Vancouver couple has been sentenced to five years in prison.

Kurtis Rock was driving impaired on a Saturday night last February when he hit two people who were crossing Fourth Avenue West near Granville Island on a green light.

Dr. Aneez Mohamed, 31, and his fiancée Chanelle Morgan, 25, died at the scene.

Morgan was a teacher of disabled children.

Mohamed was a second-year cardiology resident at Vancouver General and St. Paul's hospitals.

Rock ran from the scene after he hit the couple, leaving behind the victims and two girls, 14 and 16, who had been with him in the vehicle.

The girls were questioned by police and released.

Rock was apprehended by officers a short time later with the help of a police dog.

"The family feels that the sentence was as harsh as the current state of the law permits for this … set of offences," said lawyer David Osborne outside the court. Osborne was representing the Mohamed family.

Rock was sentenced to four years in prison — minus time served — on the conviction for dangerous driving causing death.

He was given an additional year for the hit-and-run conviction, as well as a 10-year driving ban.