The penalty could include death or imprisonment for a minimum of five years.
Answer:
If they feel like they are going to get out in prison or if they think that they are about to be proven guilty. they may make a plea deal so they can get the defendants help if they know something the prosecutor needs to know for the case.
Answer: Poison, sperm, lead, microbes from bodies of water, and drugs. Thats all i can think of but im sure there is alot more