Forrest was 20 years old when he shot Officer Ryan Burns during a routine traffic stop in November of 2014.
Police said Forrest fired at Burns from a car he had stolen shortly before. He sped away from the scene in a van and was captured two days later.
Forrest went to trial in January and was convicted on numerous class five felonies, including reckless attempted manslaughter, aggravated motor vehicle theft and second degree assault.
Forrest apologized but it didn’t seem to make much of an impact on the judge, CBS Denver reports.
The judge said Forrest didn’t show any remorse and appeared to be only sorry that he was caught, despite an apology given to the court.