Johna Kay Martinez-Meth, 46, of Clearlake, pleaded guilty to involuntary manslaughter in the death of prisoner Adrian Sepulveda. According to the California Department of Corrections and Rehabilitation, Martinez-Meth was sentenced to two years in prison Feb. 21 in a Solano County courtroom.

"CDCR is committed to stopping the flow of drugs into our prisons," Bryan Shill, deputy chief of CDCR's Office of Correctional Safety, said in a news release. "Our investigators will diligently pursue those who smuggle narcotics into any state correctional facility, and we will seek justice through aggressive prosecution of violators."