Luigi Preiti was found guilty of multiple counts of attempted murder, in addition to charges of illegally possessing and carry a weapon and stolen goods, Il Sole 24 reported.
He fired six shots at officers outside parliament on April 28th 2013, injuring four people. One policeman, Salvatore Giuseppe Giangrande, was seriously injured after being shot at close range in the neck.
The appeal court judge on Tuesday said there was no doubt Preiti had shot to kill, confirming the 16-year sentence first handed down in January 2014. He now has the possibility for a last appeal, which would take the case to Italy’s highest court.
A request by the defence for a new psychological report were rejected. A psychiatrist in 2013 said Preiti had been suffering from “a mild depressive disorder” at the time of the shooting, although said he was in control of his actions.
Preiti previously said that his actions were a political protest, which took place on the day Enrico Letta was sworn in as prime minister.