was this assassin found guilty?
No
John Hinckley Jr.
He was found not guilty by reason of insanity and remained under institutional psychiatric care until September 10, 2016. 
what type of magma does mt st helens have Ash explosions and pyroclastic flows. where is it located? Skamania County, Washington, United States. what was its impact on human from the 1980 eruption? Fifty-seven people were killed; 250 homes, 47 bridges, of railways, and of highway were destroyed. what are the measures taken for protection? Ronald Reagan established the Mount St. Helens National Volcanic Monument did reagan hold any political position? Yes, served as the 40th president of the US how is he connected to tv then? He was hired as the host of "General Electric Theater" was he into military too? Yes, Reagan enlisted in the Army Enlisted Reserve did anyone make any attempt to assassinate him? Yes, he was struck by gunfire by John Hinckley Jr.
wiki:19497876
John Hinckley Jr. [SEP] Introduction
Public outcry over the verdict led to the Insanity Defense Reform Act of 1984, which altered the rules for consideration of mental illness of defendants in Federal Criminal Court proceedings in the United States. Along with Lynette Fromme and Sara Jane Moore, Hinckley is one of three attempted presidential assassins currently living who are not in prison.