“Why would a burglar shoot Casey Dowling?” I asked Conklin as we walked up the street.

“What Clapper said. The burglar carried a gun in case he ran into an emergency.”

“Like a surprised homeowner?”

“Exactly.”

“Casey Dowling wasn’t armed.”

“True. Maybe she recognized the intruder,” Conklin said. “You know those stories Cindy’s been doing on Hello Kitty?”

Cindy is Cindy Thomas, a crime reporter at the San Francisco Chronicle and a friend to the end with a great mind for solving whodunits.

Recently Cindy had been writing about a cat burglar who’d been doing second-story jobs, always breaking in when the homeowners were having dinner on the first floor and the alarm system was turned off. This burglar made off with only jewelry-which had not turned up. Cindy had dubbed the cat burglar “Hello Kitty,” and it stuck.

Here’s what was known about Hello Kitty: he was fit, deft, and fast, and had a huge pair of stones.

“Think about it,” Conklin said. “Hello Kitty seems to know when these wealthy people are having dinner parties. What if he’s part of the same social circle? If Casey Dowling recognized him, maybe shooting her was his only way out.”

“Not a bad theory,” I said to Conklin as we took the walk up to the front steps of the manse next door. “But wait a sec. What did you make of Dowling’s wet hair?”

“He washed off his wife’s blood.”

“So he leaped into the shower after Casey was murdered,” I said. “It seems weird to me.”

“So what’s your theory? Homicide One Oh One?”

“Why not? Because Dowling’s a movie star? Something about him isn’t right. He told Clapper he heard two gunshots. He told us he heard a noise, and then sometime after that, he heard a second sound, and that time he was sure it was a shot.”