MOSCOW, November 26 - RAPSI. Prosecutors are seeking sentences of 16 to 19 years for defendants implicated in the case of the planned terrorist attack on a high-speed train between St. Petersburg and Moscow, defense attorney Abusupyn Gaytayev told the Russian Legal Information Agency (RAPSI/rapsinews.com) on Monday. He added that prosecutors believes that all four defendants are guilty. The case is being considered by a three-judge panel. Islam Khamzhuyev, Fail Nevlyutov, Mansur Umayev, and Mansur Edilbiyev have been accused of attempting to commit acts of terrorism, as well as illegally acquiring, transferring, selling, transporting, and possessing arms and explosive devices. Khamzhuyev, Umayev, and Edelbiyev have also been charged with illegally manufacturing explosives. Nevlyutov has been charged with taking part in an illegally armed enterprise. Khamzhuyev has also been accused of financing an illegally armed criminal enterprise. On July 18, 2011, Federal Security Service (F...