"Sure you are."
The policeman's arm went down.
"I didn't know you at first.
Well, they're back there."
He jerked a thumb over his shoulder.
"Bad business."
"Bad enough," Spade agreed, and went up the alley.
Half-way up it, not far from the entrance, a dark ambulance stood.
Behind the ambulance, to the left, the alley was bounded by a waist-high fence, horizontal strips of rough boarding.
From the fence dark ground fell away steeply to the billboard on Stockton Street below.
A ten-foot length of the fence's top rail had been torn from a post at one end and hung dangling from the other.
Fifteen feet down the slope a flat boulder stuck out.
In the notch between boulder and slope Miles Archer lay on his back.
Two men stood over him.
One of them held the beam of an electric torch on the dead man.
Other men with lights moved up and down the slope.
One of them hailed Spade,
"Hello, Sam," and clambered up to the alley, his shadow running up the slope before him.
He was a barrel-bellied tall man with shrewd small eyes, a thick mouth and carelessly shaven dark jowls.
His shoes, knees, hands, and chin were daubed with brown loam.
"I figured you'd want to see it before we took him away," he said as he stepped over the broken fence.
"Thanks, Tom," Spade said.
"What happened?"
He put an elbow on a fence-post and looked down at the men below, nodding to those who nodded to him.
Tom Polhaus poked his own left breast with a dirty finger.
"Got him right through the pump—with this."
He took a fat revolver from his coat-pocket and held it out to Spade.
Mud inlaid the depressions in the revolver's surface.
"A Webley.
English, ain't it?"
Spade took his elbow from the fence-post and leaned down to look at the weapon, but he did not touch it.
"Yes," he said,
"Webley-Fosbery automatic revolver.
That's it.
Thirty-eight, eight shot.
They don't make them any more.
How many gone out of it?"
"One pill."
Tom poked his breast again.
"He must've been dead when he cracked the fence."
He raised the muddy revolver.
"Ever seen this before?"
Spade nodded.
"I've seen Webley-Fosberys," he said without interest, and then spoke rapidly:
"He was shot up here, huh? Standing where you are, with his back to the fence.
The man that shot him stands here."
He went around in front of Torn and raised a hand breast-high with leveled forefinger.
"Lets him have it and Miles goes back, taking the top off the fence and going on through and down till the rock catches him.
That it?"
"That's it," Tom replied slowly, working his brows together.