A woman stands in front of the Vladislav Ribnikar school prior to a ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People cry in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People cry in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
A man stands in front of the Vladislav Ribnikar school prior to a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People stand in front of the Vladislav Ribnikar school prior to a ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People cry in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
A man stands in front of the Vladislav Ribnikar school prior to a ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)
People gather in front of the Vladislav Ribnikar school during a memorial ceremony to mark the first anniversary of a shooting that killed 10 people in Belgrade, Serbia, Friday, May 3, 2024. (AP Photo/Darko Vojinovic)