A Kentucky judge whom authorities said was fatally shot by a sheriff last week was remembered Sunday as a pioneer who fought against opioid addiction and favored treatment over jail for low-level drug offenders.

District Judge Kevin Mullins was shot inside the Letcher County Courthouse. Kentucky State Auditor of Public Accounts Allison Ball confirmed Mullins was the shooting victim in a post on social media.

A Kentucky sheriff allegedly shot a judge early Thursday afternoon. Here's a look at the motive behind the Letcher County shooting.