SALEM -- The state has dismissed felony charges against three people accused of assaulting and robbing a man at an interstate rest stop in Salem last month.

McCook County State’s Attorney Mike Fink signed documents on March 8 which dismissed the charges pending against Brionna Eckman, 29, of Pierre, John Peterson, 50, of Mitchell, and Paul Selzler Jr., 30, of Yankton.

The documents stated that there was not enough evidence available to support prosecution in any of the three cases. Fink told The Daily Republic on Monday that the investigation is ongoing but that the charges were dismissed because there is not currently enough evidence to support a case against the three people who were charged.

Eckman, Peterson and Selzler were arrested Feb. 13 after the McCook County Sheriff’s Office was alerted of a 29-year-old man who was at the westbound Interstate 90 rest stop in Salem and told law enforcement the three people had tased him, beat him with fists and a baseball bat, pointed a gun at him and stolen his phone and apartment key.

Mitchell police later found a car with Eckman, Peterson and Selzler inside. All three were charged with first-degree robbery, aggravated assault and a misdemeanor charge of interference with emergency communications.