Damn, I'm good. "So who is he and what are they doing about it?"
"His name's Bill Toner. He has a record of bush-league crack dealing and ag assault, in Kensington. Philly put an APB out on him, with his last known address." Dan eyed the photo. "Dude's ugly as sin. A cold, cold killer."
"So Toner killed Browning?" Vicki fake-mulled it over. "Do they know why?"
"Not yet." Dan shook his head. "Or at least they're not saying so in an open meeting, with Strauss there."
"Strauss was there? Was Bale?"
"Yep."
"The triumvirate." Vicki would have felt left out if she hadn't been doing something more important. Like their jobs.
"I missed you today." Dan smiled, set the photo on the table, and reached for her, drawing her close. He didn't feel so cold anymore, his chest warm and strong, and Vicki pressed herself against him, his loosened tie silky on her cheek. She felt guilty deceiving him, but if he knew what she'd been doing, he'd try to stop her. She accepted his embrace, and the real, solid comfort it afforded, after the awful afternoon.
"It looked horrible, on TV. These poor people, getting shot."
"I know, I saw it, too. These are real bad guys. Dangerous guys." Dan's voice softened, and Vicki felt the reverberation within his chest as he spoke. "Problem is, you shoulda seen this meeting. The Toys ‘R' Us shooting threw a major wrench into the works. The mayor's on the phone, the city's in an uproar. Then the chamber of commerce starts screaming. Everybody's running around like a chicken and you could see it happen. It was like a tide shifting. I watched Morty go to the back burner."
"Why?" Vicki asked, stricken. "Browning's murder is related to Morty's. These things are of a piece, they have to be."
"Doesn't matter now." Dan frowned in disappointment, too. "Now it's about innocent people being killed while they shop, you can see that. Strauss has to shift priorities to the safety of shopping in the city, to babies and kids getting shot up on the evening news. You can't blame the man."
"But the CI was Browning's girlfriend and she got killed when his coke was stolen. Maybe somebody from the Toner crew, if not Toner himself, is trying to take over Browning's operation."
Dan nodded. "I'm not saying they won't follow up on that, but jurisdiction is still a live issue, unfortunately, and Toys ‘R' Us is an emergency. The situation is acute, and we're in triage. The murder of an ATF agent and a druggy girlfriend in a stash house will not get the same attention as kids shot up when they're at a Toys ‘R' Us. They're already pulling uniforms off the street."
No! "But Morty's life matters and so does hers. And what about her baby?" Vicki felt like the case was slipping away. "If you fix one, you fix the other, don't you see? They can't let Morty go!"
"Wait, there was one thing, hold on, I'll get it." Dan left the kitchen and returned with his briefcase, set it on the chair, and slid some papers out. "Look." He put the papers down on the kitchen table, next to the place setting.
Vicki came over. The papers were charts of first names and numbers in computer printing. The names ran down the left side of the chart, the numbers, ten digits, ran down the middle, and then after that was a second column of numbers.
After a minute, she recognized the ten-digit numbers in the middle as phone numbers because they all began with 215, the area code for Philly. Vicki asked, "A list of phone calls?"
"Yes. It's called a Call Frequency Chart. It's fascinating. ATF developed the software program that generates it, for HIDTAs."
"HIDTAs?"
"High Intensity Drug Trafficking Areas. It's a task force within the agency, and ATF assigned the investigation of Morty's murder to them. They specialize in drug operations with an especially high level of violence."
Gulp. "And what does HIDTA do, exactly?"
"Investigate, tap, surveille, you know, get the info for search and arrest warrants, in the most dangerous cases." Dan returned to studying the charts. "HIDTA has developed its own program for investigations of cell phones. You see, dealers have to communicate with each other all the time, and they use Nextel phones or cell phones. It's very mechanical, the drug business."
Vicki had thought the same thing, when she and Reheema were following the dealers the past two days. It was almost primitive.
"HIDTA starts with a normal cell phone, one that's seized, let's say, during a search. They call that the ‘known phone.' They analyze the data in it, like the directory, and figure out the phone numbers associated with each person called. You follow?"
"Yes."
"Then they subpoena the records for the known phone, over a long period of time, and they load all the information about the calls into the computer. The program they wrote generates a Call Frequency Chart. That is, it makes a record of how often the owner of the known phone calls certain numbers." Dan ran a fingernail across the first line of the list. "This first page is a sample, and you can see the first name on this list is Lik, which they tell me is the nickname for Malik."
"Okay."
"Lik's number is this one, and the chart shows that the owner of this phone called Lik's number the most frequently of all other calls, in a month's time. The column on the far right is the number of times the owner of the phone called Lik in a month, which is 354. You can look down the chart at the first three people the owner called the most. Lik, Tay, and Two. See? He called them 354, 322, and 310 times, respectively."
Vicki did.
"Now, they tell me that drug dealers change cell phones all the time. They use ‘burnout phones' or ‘drop phones,' they call them. Let's say the owner of the phone, the bad guy, drops this phone. He throws it away to avoid the cops."
"Okay."
"The problem used to be that when the bad guy discarded a phone, all the investigation of his activity and calls were gone, and HIDTA would have to start over again. No more." Dan went to the next sheet of numbers. "Now they can figure out which cell phone he picks up next, using this software."
"How?"
"Because, as a logical matter, he tends to call the same set of people he called before, at the same frequency. See this second chart? This new caller called Lik's number ten times that day. HIDTA does the same thing for the other people called, Tay and Two, and they do it over a long period of time, to enhance the reliability of their conclusion. The odds are that it's the same person making those calls, regardless of which phone he uses. Correct?"
"Correct."
"So then we can reason backward, and say that therefore, the bad guy is now using this cell phone. We can figure out that that's his new cell number and pick up activity on the new phone, losing no time on the investigation. In other words, the fact that they change phones doesn't defeat us."
"Great."
"Now this software has other applications for investigations. For example, what they told us at the meeting is that your cell phone, with the blue daisies"-Dan smiled-"is currently being used by a known mid-level drug dealer. His name is Ray James."
"What?" Vicki was astonished. "How do they know that?"
"Here's his chart, but it's only for a few days, so it's not rock-solid by any means." Dan set two charts side by side. "But see? They had Ray James's known phone from a previous arrest, and they did a Call Frequency Chart for him on the known phone. Then, because they knew your cell number, they began a Call Frequency Chart for your phone after it was stolen."
"So they tapped my cell phone?"
"No, they don't have to tap the phone to get this. They just can get a pen register, a record of calls made by the phone, as opposed to actually listening in to the call."