Two more people connected with a Hanging Rock methamphetamine lab pleaded guilty in Lawrence County Common Pleas Court Wednesday.

Two other co-defendants in the case waived their right to a speedy trial.

David Richie, 19, of 506 Chinns Branch Road, Wurtland, Ky., pleaded guilty to second-degree complicity to the manufacturing of drugs and fifth-degree possessing criminal tools through his attorney Roger Smith.

Judge Charles Cooper sentenced the man to four years in prison and ordered him to pay a $5,000 fine, suspended his driver’s license for three years and gave him credit for time served.

On Oct. 17, James Hay, 19, of 52 Apache Way, Greenup, also pleaded guilty to second-degree complicity to the manufacturing of drugs and fifth-degree possessing criminal tools.

Cooper also sentenced Hay to four years in prison and ordered him to pay a $5,000 fine and suspended his driver’s license.

Earlier this month, Katie Horsley, 31, of 164 Township Road 283 N, Ironton, and Milissa York, 27, of 3692 State Route 503, Wurtland, Ky., also pleaded guilty to the same charges and received the same sentences.

Earl Horsley II, 33, of 36 Mound Road, Greenup, Ky., received eight years in prison after pleading guilty to second-degree illegal manufacturing of drugs, third-degree illegal assembly or possession of chemicals for the manufacturing of drugs, fifth-degree possession of criminal tools and tampering with evidence.

Only Amber Hay, 20, of 52 Apache Way, Greenup, Ky., and Aaron Dillow, 34, of 204 Hereford Hollow, Greenup, remain to be prosecuted. They are both charged with second-degree complicity to the manufacturing of drugs and fifth-degree possessing criminal tools.

They both waived their right to a speedy trial Wednesday.

In August, the Hanging Rock Police Department found the active meth lab on Daniels Drive in August.

According to the authorities, some of the defendants tried to flush the chemicals down the toilet, which then melted the toilet.