District prosecutor Pascal Gossner reported to journalists on Tuesday that Kaloyev partially admitted his guilt.
According to him, on the day before Kaloyev requested to have a talk with an investigator in the presence of his attorney. Kaloyev explained that on February 24 he arrived at the house of the traffic controller in the city of Kloten. According to Kaloyev, he wanted the traffic controller to present his apologies for the catastrophe over Lake Boden. After the talks with the traffic controller Kaloyev lost self-control and does not remember anything that happened afterwards.
Investigation stated that it intended to carefully study Kaloyev's evidence.
At the same time, according to Kaloyev's Swiss lawyer Marcus Hugh, evidence given by his client could not be construed as partial confession. Kaloyev simply acknowledged that on the day the crime was committed he was at the house of the controller and talked to him.
According to Hugh, Kaloyev wanted to show photographs to the controller but the latter pushed him aside and photographs fell on the ground.
Hugh stated that his "client does not remember what happened afterwards." The Skyguide traffic controller who was on duty on the night of the catastrophe of the Russian TU-154 aircraft over Lake Boden was knifed to death on February 24 in his house in Kloten.
Kaloyev lost his whole family in the air crash over Lake Boden: his wife, daughter and son. He was arrested the day after the murder in one of the Kloten's hotels and then placed into a psychiatric hospital because of the high risk of suicide.
In July 2002 a Tu-154 aircraft of Bashkir airlines and cargo Boeing-747 collided in mid-air in the German airspace. As a result of the accident 69 people on board the TU-154 aircraft died, mostly children, as well as two Boeing-747 pilots.
According to one of the versions, the murdered Skyguide traffic controller was guilty of the tragedy as the catastrophe took place in his area of responsibility.