The sound of Bob crunching on something, probably his favorite Ruffles potato chips, came through the tinny speaker. “Okay, so the DNA fizzled out and you’ve talked to everybody. But don’t you always say that people are unreliable anyway?”

He was right about that.

More crunching. “So why don’t you be you? Look at the documents, the records. They don’t lie.”

Keller smiled again. “You really do listen to me.”

“Did you say something?” Bob said.

“Shut up.” She laughed.

“So what do you have so far?”

It was against the rules to talk about an investigation with anyone outside the Bureau. Keller was usually not one to break the rules. But Bob was always her sounding board. The big lug not only calmed her nerves, he was a rare commodity in this world: a good listener. It was why she’d taken to Matt Pine, she thought. He wasn’t your average twentysomething with delusional confidence, eager to tell you how things were. Like Bob, he listened. Sometimes just saying things out loud—working through her thoughts—helped Keller connect the dots.

“There’s a video the daughter posted. A tip she’d received shortly before they left for Mexico. The timing alone suggests it may be connected.”

“Okay. What’s it show?”

“Just a few seconds of teenagers being teenagers. Danny Pine being egged on as he chugged a beer. He’s down to an undershirt, surrounded by a bunch of football players. In the last second on the recording, someone’s face comes into the frame. The armchair detectives think it’s the Unknown Partygoer.”

“What do you think?”

“I think it could be anyone. There’s not enough for facial rec. And I think the video was sent for some other reason. But I’ve watched it over and over again, and I don’t see anything.”

“How’d Maggie Pine get it? I mean, who sent her the video?”

“It was an anonymous tip.”

Bob blurted a laugh. “You’re Big Brother. Get on that, G-woman. What’s the use of all those NSA toys if you don’t get to use them?”

“Trust me, I’ve been pushing the computer guys to track the sender. It just takes some time.”

Bob was right, though. The source of the video was important. Whoever sent it did so for a reason.

“Okay, what else you got?” Bob asked.

“When they were in Mexico, Maggie sent her brother a photo. It was of their father. But I had it enhanced and Matt noticed something new today. In the background, a woman who’d tried to set Matt up.”

“Noooo,” Bob said. “She was in the photo the daughter took before?”

“I know, right?”

“Well, you gotta get on that.”