In 1988, in Brooklyn Dana Garner was kidnapped, tied up in a nearby apartment and beaten up for two days; he then escaped and went to the police.

Garner said he saw one of his captors coming out of a store. Based solely on Garner's testimony, the man was sentenced to 10 years to life in prison.

Two years later, he said he witnessed a man shooting an Uzi into a passing car and murdering two people. Based solely on Garner's testimony, that man was sentenced to 36 years to life in prison.