Updated: May 12 2021, 11:23 ET From a fetus murderer to a maniac dubbed the "Scorecard Killer", almost 20,000 people are known to be on death row across the world. 10 10 According to Amnesty International, 483 people, excluding China, were executed last year - including 16 women. China remained the world's leading executioner in 2020 – but the true number of executions is unknown as the figures are classified as a state secret, Amnesty said. Excluding China, 88 percent of all recorded executions, including beheading, electrocution, hanging, lethal injection and shooting, took place in just four countries - Iran, Egypt, Iraq and Saudi Arabia. Egypt more than tripled its reported executions - from at least 32 to at least 107.