...On April 5, 1991, Tower was killed along with 23 other people in the crash of Atlantic Southeast Airlines Flight 2311 on approach for landing at St. Simons Island, Georgia. Also killed in the crash were Tower's 35-year old daughter, Marianne, and astronaut Sonny Carter. Some conspiracy theorists argue that Tower's demise was because he supposedly knew the suppressed truth of the Iran-Contra scandal....http://en.wikipedia.org/wiki/John_Tower#Suspicious_deathMaybe he knew the "suppressed truth" of Poppy's employment status in 1963.
John Tower: A Man who Knew to much.