Swiss authorities announced on Monday the apprehension of a 43-year-old individual in connection with a fatal shooting at a music gathering in Aarau over the weekend. During the early hours of Sunday, a 22-year-old woman from Italy lost her life, and five others sustained injuries at the event held at a covered horse racing venue. Police conducted a significant operation and arrested the 43-year-old Swiss man just before 1 a.m. on Monday on suspicion of perpetrating the attack.

An ongoing investigation is focusing on the precise circumstances and potential motives behind the incident, with authorities in the canton of Aargau indicating that a single perpetrator is likely involved. While no specific details were provided, authorities are exploring three possible motives for the shooting, which include a mass shooting, a terrorist act, or an undisclosed criminal intention.

Evidence recovered at the scene suggested the presence of two different types of bullets, potentially indicating the use of a pistol and a larger weapon, possibly an assault rifle. Although the Swiss newspaper Tages-Anzeiger mentioned similarities between the ammunition found and those used in the Russian AK-74 assault rifle, law enforcement authorities have refrained from commenting on this information.

The victim, identified as Maria Spinelli by Italian Prime Minister Giorgia Meloni, was the 22-year-old Italian woman who tragically lost her life in the incident.