A verdict is expected Thursday in the trial of a 21-year-old Austrian man who admitted to plotting an attack on a Taylor Swift concert in Vienna in August 2024.

The defendant, identified only as Beran A. under Austrian privacy rules, faces charges including terrorist offenses and membership in a terrorist organization. His defense attorney said he pleaded guilty to charges related to the concert plot during the opening day of the trial last month. He could face up to 20 years in prison.

According to prosecutors, Beran A. planned to target people outside the Ernst Happel Stadium with knives or homemade explosives. Austrian authorities canceled Swift's three scheduled performances after learning of the plot, disappointing tens of thousands of fans who had traveled to Austria for the concerts. Many gathered in central Vienna to trade friendship bracelets and commiserate about the cancellations.

Beran A. is being tried alongside Arda K., who has not been publicly identified by full name. The two men, along with a third suspect who remains in pretrial detention in Saudi Arabia, allegedly planned simultaneous attacks in Saudi Arabia, Turkey and the United Arab Emirates during Ramadan 2024 in the name of the Islamic State group. Only Beran A. was charged in connection with the concert plot, and he pleaded not guilty to charges related to the other planned attacks.

The court was expected to hear from experts and closing arguments before reaching a verdict Thursday, though the timing remained unclear.