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On February 15, 1971, Rene Guzman and Leonardo Lopez abducted five law enforcement officers in West Dallas, Texas, killing three of them and injuring a fourth at a site near the Trinity River. The fifth deputy was able to escape the shooting uninjured and call for help. Guzman and Lopez were suspects in a burglary in Ellis County, Texas, and the officers were obtaining consent-to-search forms when they were abducted.
Guzman and Lopez were able to escape after the shootings, beginning a manhunt that led to their arrest in East Dallas. Guzman and Lopez were tried, found guilty, and sentenced to death. However, following issues in the court case and the death penalty being declared unconstitutional, they were given a retrial. Both were given four life sentences. Lopez was paroled in 1991, but was incarcerated again for a separate case.