 Cotto had been fighting with the victim over a debt. Earlier this year, Cotto pleaded guilty to second-degree murder and was given a 22-year sentence. Find out more about the case at knsiradio.com. The state of Minnesota can't ban adults under 21 years old from carrying guns. The court made the ruling on Tuesday saying that it's unconstitutional to require residents to be at least 21 years old to get a permit to carry a handgun for self-defense.