Lester Zygmanik Was Charged with Murdering His Brother George After

Lester Zygmanik was charged with murdering his brother George after George was severely injured in a motorcycle accident. George did not want to live his life as a quadriplegic and asked Lester to kill him; Lester did as his brother asked. If you were a juror in this case and you were making decisions based on black-letter law, you would decide that Lester is

A) guilty.
B) not guilty.
C) not prepared to undergo a trial.
D) insane.