Given the question: Information: - The Virginia Tech shooting, also known as the Virginia Tech massacre, occurred on April16, 2007, on the campus of Virginia Polytechnic Institute and State University in Blacksburg, Virginia, United States. Seung-Hui Cho, a senior at Virginia Tech, shot and killed 32 people and wounded 17 others in two separate attacks (another six people were injured escaping from classroom windows), approximately two hours apart, before committing suicide. The attack is the second deadliest shooting incident by a single gunman in U.S. history. - The Order of the Star of Romania (Romanian: Ordinul Steaua Romaniei) is Romania's highest civil Order and second highest State decoration after the defunct Order of Michael the Brave. It is awarded by the President of Romania. It has five ranks, from lowest to the highest: Officer, Commander, Grand Officer, Grand Cross, and Grand Cross with Collar. - The Order of Michael the Brave is Romania's highest military decoration, instituted by King Ferdinand I during the early stages of the Romanian Campaign of the First World War, and was again awarded in the Second World War. The Order, which may be bestowed either on an individual or on a whole unit, was named in honor of Michael the Brave ("Mihai Viteazul"), a late 16th-century Prince of Wallachia, Transylvania, and Moldavia. - Liviu Librescu ( Romanian pronunciation : ( livju libresku ) ; Hebrew : ; August 18 , 1930 -- April 16 , 2007 ) was a Romanian - born Israeli and American scientist and engineer . He was a professor whose major research fields were aeroelasticity and aerodynamics . A prominent academic in addition to being a survivor of the Holocaust , he is most widely known for his actions during the Virginia Tech shootings , in which he held off the gunman , giving all but one of his students enough time to escape through the windows . Shot and killed during the attack , Librescu was posthumously awarded the Order of the Star of Romania , Romania 's highest civilian honor . At the time of his death , he was Professor of Engineering Science and Mechanics at Virginia Tech. What is the relationship between 'liviu librescu' and 'virginia tech massacre'?
The answer is:
manner of death