FARMINGTON — A grand jury indicted four of five people Thursday in connection with a methamphetamine lab at a mobile home at 8 Winter Hill Road in Kingfield.

Three of them were indicted on arson charges in connection to a “one-pot” meth lab explosion and fire at the home Feb. 8.

Joshua Bartlett, 25, of North New Portland, David Coffren, 31, of Kingfield and Seth Hinkley, 26, of Strong, were each indicted on one felony count of arson. Bartlett and Isaac Moody, 24, of Phippsburg, were each indicted on a felony count of trafficking in a schedule W drug.

Coffren and Hinkley were indicted on one count of aggravated trafficking in schedule W drug. Coffren was also indicted on a misdemeanor charge of endangering the welfare of a child. Coffren’s young child was in the mobile home during the drug-making and fire, drug agents previously said.

“It appears the fire is a result of manufacturing of methamphetamine,” an agent said earlier.

State fire investigators believed from the start that the fire was arson, investigator Edward Hastings IV said in a court affidavit. He called Maine Drug Enforcement Agent Brian Ross to the scene March 12. Hastings and a demolition crew hired to clean up the gutted mobile home and move it believed they had found the remnants of a methamphetamine lab, Ross’ affidavit stated.

Ross wrote that he responded to the site, which is behind Kingfield Health Center, and found remnants of a white granular and crystalline substance coating the inside of a bowl and tubing, which are consistent to a methamphetamine cooking operation.

Ross and Hastings checked receipts at pharmacies, a hardware store and a grocery store to determine where the ingredients came from to make the drug.

According to the affidavit, Coffren told investigators that Hinkley and Bartlett were at his trailer and the three of them were going to make methamphetamine and use it. They were all “strung out” from making and using methamphetamine the night before, Ross wrote.

Coffren was in the living room with his girlfriend, who was not arrested in the case, and heard “fire, fire” coming from his bathroom/bedroom. He saw a small fire in that area, grabbed some baking soda and poured it on it, Ross wrote.

Meanwhile, Hinkley and Bartlett went to the kitchen and began making a second “one-pot batch,” Ross wrote. Coffren heard a loud explosion from the kitchen and saw it was on fire.

He tried putting it out, but then grabbed his sleeping child in the next room and ran outside to a car and left, the affidavit states.

State fire Sgt. Ken Grimes said previously that witnesses saw a person running from the mobile home. The charge of arson can stem from starting, causing or maintaining a fire or all of those, Grimes said.

dperry@sunjournal.com