Overview

• Iris Stalzer identified her 17-year-old adoptive daughter during questioning, making the teenager the prime suspect, police said.
• Forensic teams located the likely crime scene in the home's basement and seized two knives and clothing, including items recovered from a rucksack, for analysis.
• Officers restored wiped blood traces at the house and reported no indication of a politically motivated attack at this stage.
• The daughter placed the emergency call initially reporting a street robbery; both siblings, aged 17 and 15, were taken into custody and are being transferred to youth welfare.
• Prosecutors say the offense currently qualifies as dangerous bodily harm, have not sought arrest warrants, and are still clarifying the son's role.