The tragedy over Lake Constance is a story about two disasters. The first took 71 lives, and the second destroyed the life of another person who could not cope with the grief.

The first disaster: 71 victims

On the night of 1 July 2002, a passenger Tu-154 of Bashkirian Airlines and a cargo Boeing 757 of DHL collided in the sky over southern Germany.

On board the Russian plane were 52 children from Bashkortostan traveling to Spain for vacation, as well as the accompanying adults. All 69 people on board the Tu-154 and 2 pilots of the Boeing died.

The cause of the disaster was a fatal sequence of errors and circumstances. That night, in the Skyguide control center in Zurich, the dispatcher on duty was Peter Nielsen, a 36-year-old Dane. His colleague had gone on break, and the main conflict warning system was turned off for scheduled maintenance.

When the dispatcher noticed that the planes were dangerously close, he ordered the Russian pilot to descend. However, at the same time, the on-board TCAS system on the Tu-154 required an increase in altitude. The pilots obeyed the dispatcher's instructions rather than the automation. It was only 44 seconds from the moment Nielsen realized the danger until the collision.

The second disaster: Vitaly Kaloev's revenge

Among the victims were Vitaly Kaloev's wife and two children, a Russian architect from North Ossetia. The loss of his entire family became an unbearable trauma for him.

He did not believe in coincidence and sought out culprits. Two years later, in February 2004, Kaloev came to Switzerland and went to Peter Nielsen's house. According to his own words, he wanted to hear an apology or explanation. But the conversation quickly turned into a fight, and Kaloev stabbed Nielsen several times. The dispatcher died on the spot, in front of his wife's eyes.

In October 2005, the Zurich court found Vitaly Kaloev guilty of premeditated murder and sentenced him to 8 years in prison. Later, the sentence was shortened, and in 2007 he was released on parole for good behavior. In Russia, many saw him not as a murderer but as a man who lost everything and did not receive justice otherwise.

Comparative table

Conclusion and consequences

Later, the Swiss court found four Skyguide employees guilty of negligence leading to death. The company also paid compensation to the families of the deceased.

This story became a symbol of how systemic errors in organization can lead to a mass tragedy, and unbearable grief to another crime that will not bring back anyone.

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