"Reasonable doubt" by a jury of his "peers":
"During the O.J. Simpson murder trial, prosecution experts testified that the odds of someone other than Simpson leaving his blood at the crime scene ranged from
1 in 170 million to
1 in 1.2 billion. The match probability for victim Nicole Brown Simpson's blood found on a sock in Simpson's bedroom was even more staggering, ranging from
1 in 6.8 billion to
1 in 21 billion.
These astronomical odds were established using "genetic fingerprinting" techniques presented by molecular biologist
Robin Cotton from Cellmark Diagnostics. For context, experts explained that the odds of a match to Nicole Brown's blood were higher than the total population of the Earth at the time."