(NewsNation) — An 85-year-old Massachusetts man faces up to seven years in prison after a jury recently found him guilty of voting twice in the 2016 general election, New Hampshire’s attorney general has announced.

But, according to records, Richard Rosen is accused of voting in two different states for decades, dating back to the mid-1990s.

Rosen was convicted on one count of wrongful voting on Friday after three days of jury deliberations. Rosen was found guilty of voting in more than one state after a jury found he knowingly checked in at a polling place in Belmont, Massachusetts, after he cast an absentee ballot in the same election in Holderness, New Hampshire, officials said.

“The Department of Justice will continue to hold accountable those individuals who commit voter fraud and attempt to take advantage of our election systems,” New Hampshire Attorney General John Formella said in a statement released Monday.

Rosen was charged in 2022 following a multi-year investigation after he was tagged by the New Hampshire Attorney General’s Office, Patch.com reported. Rosen was found to have been on the Interstate Voter Registration Crosscheck Program, which tracks possible multiple voter registrations in several states.

The report indicated that an investigator accused Rosen of voting in both Massachusetts and New Hampshire since the 1990s in both primary and general elections. The news outlet reported Rosen blamed ID fraud and another man for the allegations of double voting.

Rosen was registered to vote in Belmont, Massachusetts, in 1995, but failed to vote in several elections which placed him on the inactive list, Patch reported.

Rosen faces between three and a half and seven years in prison and a $2,000 fine.