“I heard it, sir, right enough, but I didn’t think it was a shot at the time, and I didn’t think it was in my cab. It was just when we were passing the Apollo Theater, and there was a big block of cars setting people down, and I thought it was a burst tire. ‘There’s somebody’s tire gone to glory,’ I sez to myself, but I give it no more thought, for it takes you to be awake to drive up Shaftesbury Avenue when the theaters are starting.”
“You said you didn’t think the shot was in your cab; why do you think so now?”
“It was the only sound like a shot, sir, and if the man has been shot, it would have been then.”
Willis nodded shortly. There was something puzzling here. If the shot had been fired by the other occupant of the cab, as the man’s evidence seemed to indicate, there would certainly have been powder blackening on the coat. If not, and if the bullet had entered from without, the other passenger would surely have stopped the car and called a policeman. Presently he saw that some corroborative evidence might exist. If the bullet came from without the left-hand window must have been down, as there was no hole in the glass. In this case the wind, which was blowing from the north-west, would infallibly have driven in the rain, and drops would still show on the cushions. He must look for them without delay.
He paused to ask the driver one more question, whether he could identify the voice which told him through the speaking tube to stop with that of the man who had given him the shilling. The man answering affirmatively, Willis turned to one of the plain clothes men.
“You have heard this driver’s statement, Jones,” he said. “You might get away at once and see the men who were on point duty both at the corner of Great Russell Street where the tall man got out, and in Piccadilly, where both got in. Try the hotels thereabouts, the Albemarle and any others you can think of. If you can get any information follow it up and keep me advised at the Yard of your movements.”
The man hurried away and Willis moved over once more to the taxi. The assistant had by this time finished his flashlight photographs, and the inspector, picking up the bicycle lamp, looked again into the interior. A moment’s examination showed him there were no raindrops on the cushions, but his search nevertheless was not unproductive. Looking more carefully this time than previously, he noticed on the floor of the cab a dark object almost hidden beneath the seat. He drew it out. It was a piece of thick black cloth about a yard square.
Considerably mystified, he held it up by two corners, and then his puzzle became solved. In the cloth were two small holes, and round one of them the fabric was charred and bore the characteristic smell of burned powder. It was clear what had been done. With the object doubtless of hiding the flash as well as of muffling the report, the murderer had covered his weapon with a double thickness of heavy cloth. No doubt it had admirably achieved its purpose, and Willis seized it eagerly in the hope that it might furnish him with a clue as to its owner.
He folded it and set it aside for further examination, turning back to the body. Under his direction it was lifted out, placed on an ambulance stretcher provided by the railwaymen, and taken to a disused office close by. There the clothes were removed and, while the doctors busied themselves with the remains, Willis went through the pockets and arranged their contents on one of the desks.
The clothes themselves revealed but little information. The waterproof and shoes, it is true, bore the makers’ labels, but both these articles were the ready-made products of large firms, and inquiry at their premises would be unlikely to lead to any result. None of the garments bore any name or identifiable mark.