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And he's been bruxing, too.
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This guy was stressed about something.
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Uh, Ethan, hand me the manganese solution, will you?
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What are you doing?
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I'm using manganese sulfate to test for hydrogen peroxide.
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Hydrogen peroxide interacts with the blood's catalase enzyme.
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I saw that same reaction on the floor of the crime scene.
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- Hydrogen peroxide, as in like... - Household cleaners.
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Wait, you're leaving?
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Don't do anything more till I get back.
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Did your husband have any enemies?
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Not that I know of.