"I am invoking my 5th amendment right to refuse to speak. I will not speak until I have my lawyer present." This is a (mostly) effective way of immediately sto

"I am invoking my 5th amendment right to refuse to speak. I will not speak until I have my lawyer present." This is a (mostly) effective way of immediately stopping an interrogation. Yes, a police interrogation is even more intense than what the author experienced. But confessing to murder is also quite a bit more serious than handing somebody 50 grand in a box.