In a previous post I wrote about State v. McNeil, a case that resolved the question of how to count prior convictions for possession of drug paraphernalia, in light of that crime’s 2014 division into Class 1 (non-marijuana) and Class 3 (marijuana) offenses. Today’s post is about prior convictions for second-degree murder—split into Class B1 and Class B2 varieties in 2012—in light of State v. Arrington, a case recently decided by the supreme court.