On 30 March 1981, there was an attempt to assassinate the US President.
Jerry Parr was one of the special agents who helped to save Ronald Reagan's life.
See all episodes from Witness
Looking at the legacy of some of the US presidents.
An assassination, an impeachment and peacemaking: episodes from US presidential history
The story of our times told by the people who were there.
Looking back at almost six years of global conflict, from Hiroshima to the Holocaust
Every programme, to download and keep
From the Bolshevik takeover of 1917 to the break-up of the Soviet Union
Events from history when animals took centre stage
Stories of endurance, world records and remarkable athletes
The communities, politics, leaders and events that have shaped Africa
History as told by the people who were there
Sign in to the BBC, or Register