“One cowboy with spurs, no Tommy; a mayo club, cremated, and hold the grass!” he said.
“What on earth?” Kathleen asked.
I beamed. “It’s authentic diner talk. The ‘cowboy with spurs’ is my Western omelet with fries. ‘No Tommy’ means I don’t want ketchup. ‘Cremated’ means toast the bread. And ‘hold the grass’ means no lettuce on your club sandwich.”
“How do you know this stuff?” she asked. “And why would you want to?”
“Say it,” I said.
“Say what?”
“I’m fun.”
She looked at me until a smile played around the corners of her mouth.
“You are fun,” she said. “Now tell me why the open attic window means something, and tell me what else you think you found.”
“Okay. First of all, a fire requires three things to burn: oxygen, a fuel source, and heat. That’s called the fire triangle. An arsonist has to tamper with one or more of those elements to fake an accidental fire. For example, this fire was set at the end of January and the attic window was open. Who leaves a window open in January?”
“Maybe the firemen opened it after the fact.”
“No. The arsonist opened it to provide an oxygen source.”
On the juke in the booth across from us, Rod Stewart was singing. Maggie May had stolen his soul and that’s a pain he can do without.
“Tell me you’ve got more than the open window,” she said.
“In the basement there were at least two points of origin. Also, in the floorboards in the master bedroom, under the bed, I saw some curved edges. I found some more in the hallway, and I’d bet the stairwell was full of them.”
“So?”
“So I think someone used a circular drill bit to drill holes in all those floorboards. That’s what created the air flow to feed the fire and make it spread much faster than it should.”
“Well duh,” she said. “If a guy was traipsing all over the house, opening windows and drilling holes, especially under the bed, don’t you think Greg and Melanie would have heard him?”
“The prep work was done earlier, before they got home. They wouldn’t have noticed the open attic window or the drill holes under the bed. The steps were carpeted, so those holes were hidden. The arsonist probably broke into the basement before they got home so he wouldn’t have to chance waking them up later. I noticed the attic access doors were open, and that’s something Greg and Melanie would have noticed when they tucked the kids in for the night. So the arsonist must have waited for the family to fall asleep. Then he sneaked up the stairs and opened the attic doors and doused the carpet in the kids’ room with gasoline.”
