A Delta Airlines DC-9-30 similar to the one involved.
     
   

Sam Byck was an American hijacker and attempted assassin
who on February 22, 1974 attempted to hijack a Delta Airlines
jet flying out of Baltimore/Washington International Airport,
intending to crash into the White House in the hopes of killing
President Richard Nixon.

In fact, Byck killed a policeman and a pilot, but was shot and
wounded by another policeman before committing suicide.

Samuel Joseph Byck
(January 30, 1930 – February 22, 1974)

A film based on his story, The Assassination of
Richard Nixon, was released in 2004.

The film starred Sean Penn as Bicke (the surname
spelling having been changed)