The gunman who killed 10 people and wounded three others in a racist mass shooting at a Buffalo, New York, supermarket last May has pleaded guilty to all state charges brought against him, including multiple counts of murder in the first degree and one count of domestic terrorism motivated by hate. The guilty plea means he will be sentenced to life in prison without the possibility of parole, his defense attorneys announced on Monday.

Attorney Brian Parker said the outcome of Monday morning’s court hearing “represents a condemnation” of the racist ideologies that fueled the attack last spring.

Nineteen-year-old Payton Gendron, of Conklin, New York, had previously pleaded not guilty to state as well as federal charges, which were announced several months after the massacre took place. Gendron was arrested shortly after the shooting, having surrendered to police, and was held in Erie County while awaiting arraignment. In early June, he was indicted by a grand jury on 25 counts, which included 10 counts of first-degree murder as a hate crime, 10 counts of second-degree murder as a hate crime, three counts of attempted murder as a hate crime, and one count of criminal posession of a weapon.