[2] At 9:05 a.m., Ekenstéen entered NTI Gymnasiet in black clothing and a face mask, carrying four knives.

On a utility belt, he attached a wireless speaker, on which he played "Don't Stop Me Now" by Queen.

[1] At approximately 9:14 a.m., when all other students had escaped the classroom, Ekenstéen stabbed three of the knives into a desk and laying the fourth knife on top of it before making a phone call to SOS Alarm, Sweden's phoneline for emergency services, explaining his actions and that he was a friend of the perpetrator behind the Eslöv school stabbing, which occurred four months prior.

Police had also found that Ekenstéen often had spread right-wing propaganda online and that he made frequent Google searches about violent crimes and stabbings.

They had met on the online video game Roblox and had been friends for around 6 years, communicating through various social media platforms and meeting each other in person 4 or 5 times.

These discussions between Ekenstéen and the police occurred prior to the Kristianstad stabbing and were part of the investigation into the Eslöv attack.