Because a jury trial in EVERY instance would be an unnecessary waste of resources in an already overburdened court system. Murder trials, more specifically the process leading up to a murder trial, is never "quick". It would also be an unnecessary financial burden on an innocent person to have to defend themselves in a murder trial. My defense in a civil case where I didn't even kill anyone cost $480,000, give or take. That's after an internal investigation and an outside investigation by the FBI had already cleared me. Why would you want to subject an innocent victim to the emotional torture and financial burdens of going to trial for murder when a thorough investigation has already cleared them of any wrong doing.
You've crossed the line (again) from nonsensical to just plain stupid and you're obviously ignorant of how the "justice" system works and Colorado law in general...despite having so many family and friends in law enforcement.