ROCKLAND — A Camden man who was indicted by the Sagadahoc grand jury in February on charges of manslaughter and felony possession of a firearm for shooting his girlfriend in November 2015, was arrested by Rockland Police for allegedly operating under the influence and drug possession.

Rockland Officer Alex Gaylor charged Dylan Grubbs, 23, formerly of Thomaston, with three counts of drug possession and criminal operating under the influence. Grubbs appeared before Judge Susan Sparaco March 25 in Knox County Unified Court, and bail was set at $1,000 cash. As of April 3, Grubbs remains at Knox County Jail in Rockland.

Grubbs has a prior conviction for operating under the influence in 2013.

According to the police report, Gaylor responded to a report of an intoxicated driver leaving the Circle K convenience store in Rockport heading south on Route 1 toward Rockland. The clerk at the store observed that the driver had difficulty maintaining his balance and was able to obtain the vehicle’s license plate number.

Gaylor located the vehicle in Rockland as Grubbs was allegedly getting out of the vehicle. According to court documents, Grubbs told police that he had not consumed any alcohol. He said he had spoken to the clerk at the store but did not understand why the police were contacted.

Gaylor conducted a field sobriety test, according to the court documents, and found that Grubbs showed signs of impairment. The officer also noted in his report that Grubbs’ speech was slow, his eyes were glassed over and watery, and his pupils were constricted. Grubbs told police that he was taking a muscle relaxant, a prescribed medication, and had taken his dose two hours before. He denied that he was taking any other medication or drugs, according the police report.

After Grubbs was transported to the Knox County Jail, he was searched by police who removed a clear baggie from a pocket in his pants, which contained multiple blue pills. Grubbs told police that the pills looked like Klonopin and Oxycodone and were from “awhile ago” and he had forgotten they were there. He confirmed that he did not have a prescription for either of the medications, according to the court document.

A Suboxone strip was also found in his wallet and Grubbs told police that although he had a prescription in January, he currently did not have one for the medication, according to the police report.

Grubbs’ urine sample tested positive for opiates, according to the court documents.

Grubbs’ girlfriend, Chelsea Jones, 22, of Thomaston, died Nov. 19, 2015, after he allegedly shot her in the head with a 9 mm Taurus handgun while she sat in their car in a Shaw's Supermarket parking lot. The two had reportedly driven to the shopping center to meet a prospective buyer for the handgun. Grubbs was allegedly showing the gun outside the car when it fired, according to a press release from the Maine Department of Public Safety.

Grubbs will appear again in court May 26 for a dispositional conference for the operating under the influence and drug possession charges.

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Reach Sarah Shepherd at news@penbaypilot.com.