The German neo-Nazi terrorist serving a life sentence for an attempted massacre in Oct. 2019 at a synagogue in the city of Halle as worshippers held services marking Yom Kippur, the holiest day in the Jewish calendar, has been sentenced to an additional seven years for his violent attempt to break out of jail just over a year ago.

Stephan Balliet received the sentence on Monday, the German news agency dpa reported.

On Dec. 12 2022, Balliet took several officers at the prison in the city of Burg hostage using a weapon he constructed himself, attempting to force them into releasing him. The standoff lasted for nearly an hour before Balliet was overpowered.

In 2020, Balliet was convicted by the regional high court in Naumberg, Germany, for the attack on the synagogue in Halle on Oct, 9, 2019. As more than 50 worshipers were inside the sanctuary for Yom Kippur services, a heavily-armed Balliet tried repeatedly but failed to smash through the synagogue’s security doors.

He then shot dead a 40-year-old female passerby before driving to a nearby kebab restaurant, where he murdered a 20-year-old male customer on the assumption that the victim was a Muslim.

Image - Reuters