Who said "I am not a murderer, though I am accused of murder."?

This quote is attributed to Armstrong.

I am not a murderer, though I am accused of murder. - Armstrong

"I am not a murderer, though I am accused of murder."

Armstrong Justice

Character in And Then There Were None

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"We are none of us infallible."

"The innocent suffer with the guilty."

"Each of us has something to hide."

"We deserve what comes."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."