(Watertown) A Watertown man was charged Monday with armed robbery of a Watertown residence. Tommie Plummer is facing two felony counts of Armed Robbery with Threat of Force and Armed Burglary with a Dangerous Weapon both as a party to a crime. Last May, Watertown police officers were called to a home invasion at a property on Louisa Street. An individual who was there at the time told police that she was sleeping when two suspects awakened her and that one of them pointed a gun at her and demanded money and marijuana. In the following days, investigators talked to witnesses who noticed two suspicious individuals walking near the home and reviewed security footage that tied the suspects to a red pickup truck. Plummer was reportedly identified as the operator of the vehicle. According to the criminal complaint, Plummer at first denied involvement in the crime but later admitted that a person who lived at the home would provide him marijuana and that person shorted him in a drug deal. Plummer allegedly said he took 28 grams of marijuana and $800 dollars in cash from the property. Plummer also refused to give up the identity of the second person involved in the crime. If convicted, the 28-year-old faces no more than 55 years in prison. An initial appearance is scheduled next month.