On this day, May 15, in 1972, Arthur Bremer shot and paralyzed Alabama Gov. George Wallace while the presidential hopeful campaigned in Maryland.

Bremer wrote in his diary he planned to assassinate Wallace or President Nixon as a "statement of my manhood for the world to see." He even chose a catchphrase to shout during the shooting: "A penny for your thoughts!"

At a rally at the Laurel Shopping Center, Bremer shot Wallace four times and wounded three others. He forgot to yell his catchphrase.

Bremer became the inspiration for the Travis Bickle character in the film "Taxi Driver," which in turn inspired John Hinckley to shoot President Reagan in 1981.

Bremer was sentenced to 63 years in prison, but was released on parole in 2007 at age 57.

-- Scott McCabe