 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! There was Mrs. Dolly Daniels, withdrawing money from her savings account again. 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." Stevenson followed Hastings' pointing finger, and saw again the crudely-lettered words, "The Scorpion" burned black into the paint of the trunk lid. It was in the crank letter's most obvious form; that is, the address had been clipped, a letter or a word at a time, from a newspaper and glued to the envelope. Dear Mr. Editor: The Scorpion has struck. The Scorpion fights crime. Crooks and robbers are not safe from the avenging Scorpion. It happened in Canarsie, a section in southeast Brooklyn near Jamaica Bay. The man who went berserk was a Motor Vehicle Bureau clerk named Jerome Higgins. As the police reconstructed it later, Mrs. Higgins had attempted to awaken him on the third morning at seven-thirty, suggesting that he really ought to stop being so foolish, and go back to work. He then allegedly poked her in the eye, and locked her out of the bedroom. Mrs. Higgins then apparently called her sister-in-law, a Mrs. Thelma Stodbetter, who was Mr. Higgins' sister. Mrs. Stodbetter arrived at the house at nine o'clock, and spent some time tapping at the still-locked bedroom door, apparently requesting Mr. Higgins to unlock the door and "stop acting like a child." At about ten-fifteen, neighbors heard shots from the Higgins residence, a two-story one-family pink stucco affair in the middle of a block of similar homes. Mr. Higgins, it was learned later, had suddenly erupted from his bedroom, brandishing a .30-.30 hunting rifle and, being annoyed at the shrieks of his wife and sister, had fired seven shells at them, killing his wife on the spot and wounding his sister in the hand and shoulder.
 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.