On 18 April 1994, during a firefight between the National Peacekeeping Force and African National Congress supporters in the Thokoza township, friendly fire killed Oosterbroek and seriously injured Marinovich.
Pada 18 April 1994, pada pertempuran antara Pasukan penjaga perdamaian dan pendukung African National Congress di kota Thokoza, salah tembak terjadi dan menewaskan Oosterbroek dan melukai Marinovich.