 What was the intention of Higgins' lawyer by saying that Higgins had put "The Scorpion" on his gun barrel himself?
CALL HIM NEMESIS By DONALD E. WESTLAKE Criminals, beware; the Scorpion is on your trail! One of the others took the pistol away from Mister Anderson, the guard, and said to him in a low voice, "Think about retirement, my friend." The third one, who carried a black satchel like a doctor's bag, walked quickly around behind the teller's counter and started filling it with money. The man who had first spoken herded the tellers, Mr. Featherhall and the customers all over against the back wall, while the second man stayed next to Mr. Anderson and the door. Except that in the trunk lid the owner had burned in 'The Scorpion' in big black letters you could see half a block away."
 To try to use an insanity defense for Higgins.
 To avoid a trial by admitting fault immediately and getting the job done quickly  In hopes of the judge and jury seeing the other vigilante acts of The Scorpion and cutting Higgins some slack.  In hopes of receiving mercy for the crimes.  To try to use an insanity defense for Higgins.