MOSCOW, June 3 (RAPSI, Diana Gutsul) - The Khoroshevsky District Court in Moscow convicted four men of kidnapping the son of businessman Yevgeny Kaspersky on Monday, RAPSI reports from the courtroom where the verdict was announced.

The investigation established that Nikolay Savelyev and his son Nikolay, together with Semyon Gromov, Oleg Mayukov and Alexei Ustimchuk, followed the CEO's 20-year-old son Ivan Kaspersky in March 2011.

They found out where he studied and worked, and also mapped out his daily schedule. They then decided to kidnap the young man in the Moscow district of Strogino.

The Investigative Committee reported that the suspects grabbed the young man on April 19, 2011, threw him into their car, and handcuffed and blindfolded him. Then they drove him to an undisclosed location in the Moscow Region, where he was held until his release on April 24, 2011.

Ustimchuk, who earlier signed a plea bargain, had already been sentenced to 4.5 years in a high security prison.

Gromov, Mayukov and the Savelyevs were in the dock in Monday's trial. They were charged with kidnapping. Gromov and the Savelyevs were also charged with extortion.

The court sentenced Mayukov to seven years in prison, Gromov to 9 years and the Savelyevs to 11 and 10 years in a high security prison each.

Kaspersky Lab is the leading Russian developer of protections against computer viruses, spam, and hacker attacks. It is one of the five leading developer of software for data protection from Internet threats.