 What do all 3 crimes have in common?
Hoodlums fear his fury—and, for that matter, so do the cops! There were Miss English and Miss Philicoff, the girls in the gilded teller cages. The three bank robbers looked like triplets. 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. She fell unconscious to the floor, and all three of them ran out of the bank to the car out front, in which sat a very nervous-looking fourth man, gunning the engine. Two police cars came driving down the block and a half from the precinct house to the bank, and the car with the four robbers in it lurched away from the curb and drove straight down the street toward the police station. The police cars and the getaway car passed one another, with everybody shooting like the ships in pirate movies. "Well," said Pauling, "it was a stolen car. "What I can't figure out," said Stevenson, "is exactly what made those tires do that. Except that in the trunk lid the owner had burned in 'The Scorpion' in big black letters you could see half a block away." "If I'm making just a quick stop—I never spend more than five minutes with any one customer—I always leave the keys in the car. "It was four professional criminals, I thought you knew that. 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. The Scorpion fights crime. The bank robbery occurred in late June. It happened in Canarsie, a section in southeast Brooklyn near Jamaica Bay. This particular area of Canarsie was a residential neighborhood, composed of one and two family houses. Two days before, he had flunked a Civil Service examination for the third time. 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.
 They were ended by unexplained phenomena and marked by the Scorpion.
 They were ended by unexplained phenomena and marked by the Scorpion.  They were carried out by The Scorpions, a new gang.  They were ended by the criminals being apprehended by the police.  In all 3 cases, something either melted or got too hot to handle.