| 1. | Yates then attacks Rose's apartment with three agents using a lethal gas.
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| 2. | Walter LaGrand was then executed March 3, 1999, by lethal gas.
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| 3. | Indeed, both lakes contain more lethal gas than they did before the eruptions.
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| 4. | The potentially lethal gas was expected to be spread through the ventilation system.
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| 5. | It could not be confirmed what type of lethal gas leaked.
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| 6. | The two previous executions in the past seven years were done by lethal gas.
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| 7. | Tests showed that 75 percent of Gerulaitis's blood was saturated with the lethal gas.
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| 8. | All federally mandated executions by lethal gas or electrocution were carried out in state prisons.
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| 9. | Bishop is also the last prisoner to be executed by lethal gas by the state.
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| 10. | Three died by electrocution and one from lethal gas.
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