About a quarter of Zimbabweans fled to neighbouring South Africa. Mugabe's secret police have killed and tortured hundreds of opposition supporters and from 1983 to 1985 his army massacred about 20,000 supporters of opposition leader Joshua Nkomo in Matabeleland in southern Zimbabwe.
More recently Mugabe and his second wife, Grace, 41 years his junior, enraged ordinary Zimbabweans by building a 25-bedroom mansion in Harare, while "Gucci Grace" spent up on designer clothes and jewellery.
More significantly, Grace tried to position herself as her ailing husband's successor and persuaded him to sack his deputy, Emmerson Mnangagwa - a crucial mistake.
Mnangagwa rallied the army and the ruling Zanu PF party to turn against the Mugabes.
After a brief but relatively civilised power struggle, the ageing dictator realised the game was up. He stepped down in return for apparent promises of safety and immunity from his crimes.
As Zimbabwe's new leader, Mnangagwa is again talking about democracy but his track record is appalling.
He was the head of the security forces for many years before becoming vice president and played a crucial role in the 1980s Matabeleland massacres and a campaign of murder, rape and torture which enabled Mugabe to steal the 2008 election.
The US State Department said in 2000 that he "could be an even more repressive leader" than Mugabe.
Nicknamed "The Crocodile" for his ruthlessness, Mnangagwa has already made it clear that Zanu PF will remain firmly in control and his promised election is a year away.
Yet there are a few signs of hope. While Mugabe was ousted by a palace coup rather than a popular uprising, the jubilation on the streets was real and has raised public expectations.
The opposition Movement for Democratic Change has grown bolder overnight and Mnangagwa desperately needs overseas money to restart Zimbabwe's collapsed economy, which is saddled with a $16 billion debt.
The United States has indicated it expects progress before handing out any cash. Insisting on a multi-party transitional government which includes prominent MDC figures would be a good start.