Provokācijas anatomija

A film about the attack on the Ministry of Internal Affairs in 1991 when Latvia was regaining its independence from the Soviet Union. Several people were killed in the attack, including two cameramen, Andris Slapiņš and Gvido Zvaigzne, who were part of Juris Podnieks's team. Who was behind the attack, and why has this matter not been solved yet?