23 Jethro and Anthony solve the crime

And it's all his people, because Becks is there, one hand in Ziva's, the other in Ducky's, along with his Rota agents and McGee. But Abby is leading the charge. "Tony! You weren't awake before. Just one hug. I'll be gentle." And she is. "You're too skinny. What is she feeding you?"

"Twigs. Do you have a Caf-Pow?"

"Do I ever."

Ducky says, "Absolutely not."

"Okay, but you're going to have to start buying it, because Becks is a big fan, right?"

"Great," Tony mutters. "She came pre-caffeinated, Abby."

"I brought you my iPad. I know your phone is wrecked, so I downloaded Tetris for you. And I pulled a bunch of photos from our database and from Interpol for you. Maybe our guy is in there." She puts on her best Gibbs voice. "That's good thinking, Abs."

"It is," Gibbs admits. Then he updates them on the case, Tony gives them the details about Hassan and the Reagan, and then they start planning.

"We know he has an NCIS jacket and hat, so no one wears NCIS gear today. Everyone will be dressed as MPs," Gibbs says.

"Major Stein," Tony says. "I haven't called him yet." He opens the phone, stares at it for a long moment, then says, "Agent Cosgrove."

His voice is so cold and hard that everyone jumps. Even Ziva has never heard that tone. "The email from rbv5757 at gmail dot com," Tony says.

"We checked it out," Sarah says. "Sent from the internet café by the main gate last night. The account was opened a day before from another café in the western party of the city. We've picked up the computer but haven't had time to print it."

"Getting prints off those internet café computers takes forever," Abby says. "We've barely finished the first one."

"Not the address that it was sent from. The address it was sent to." Tony holds up the phone. "Any jackass can figure out her work address. But not many people know that she's rivkaima at gotophoto dot com. This is the account she uses to send out pictures." He turns to Ziva. "Your mailing list is what, ten people? How does this guy know that address?"

"You sent out Krismukkah cards last year," Abby says.

"Not from that address," Ziva says. "I downloaded the photo and made the card offline. I used my gmail account to mail it. Tony's right, only about ten people."

McGee says, "No one noticed the receiving address, Tony."

"I'm not asking you, Tim. I'm asking Agent Cosgrove."

"Tony, I'm sorry. I just never—I'm so sorry, I'm so sorry."

"Don't apologize," Tony says. "Understand. This is what you're good at. We rely on you for this stuff. And now we've lost a lot of time."

"I never forwarded anything from that address, Ziva," Sarah says. "Never."

This surprises even Tony. "You're on the mailing list?"

"Ziva sent me the pictures to set up your digital frame."

And now it's all falling into place. It had all been there in the MTAC conference. If he'd ever actually watched it again, would he have put it together sooner? "Special Agent in Charge DiNozzo," Gibbs says, but he's watching Cosgrove. "What's the name of that agent you fired in January?"

"Peter Hamilton."

"Why did you fire him?"

"He wasn't a good fit with the team."

Gibbs rolls his eyes. "In English, DiNozzo, not Vance-speak."

"He was hinky. I didn't like him."

"What happened after that?"

"He protested the firing and lost. He was just a probationary agent and I didn't have to give good cause. Though Vance gave me hell over the cost of the protest."

"Where is he now?"

"He was in DC for the protest hearing in April. After that, I have no idea."

Tawan Allen puts up his hands. "Don't we have more important matters to worry about?"

"Hush, dear boy," Ducky says. "Jethro and Anthony are solving the crime."

Tony groans. "Oh, God. He's the grad student in Seville, isn't he?"

Gibbs smiles. "Afraid so. He's also the inventor of a unique digital frame that shows HD video. And I suspect it's a bug as well."

Sarah is shaking her head. "No, no, no. Yes, I started seeing Peter this summer, and yes, the frame was his idea. But he would never do anything like this. Never. He liked Becks, we all do. He would never hurt her."

"But he would take part in a conspiracy to kill Tony and open the base to a terrorist," Gibbs says.

"Look," Sarah says, "Peter was really upset about being fired. And Tony, you were really unfair. Peter's not your kind of guy—"

"Because Tony is not the kind of guy that would conspire to murder and the kidnapping of a child," Ziva says.

"—but he would never do something like this. Never."

"What's his cellphone number?" Tony asks.

Sarah gives it to them. "McGee," Gibbs says. "Find him. When did you last you see Hamilton, Agent Cosgrove?"

"The weekend. He's in Seville. He has classes in the morning and works afternoons."

"Boss, he's a few blocks from here." McGee shows the map to Gibbs and Tony.

Gibbs says, "He's not in Seville, and I'm betting that's your apartment."

"Hancock, Green," Tony says. "Pick him up. Make sure you get the car and any computer gear. Get on the horn to Seville and have them seal his apartment there."

"We don't have a warrant," Green says.

"He'll surrender," Tony says. "He'll want to show off. He'll think he can wiggle out of this."

"If he doesn't surrender?"

"Then you stay on him until we get you a warrant," Gibbs says. "Good thing your boss has that golfing buddy."

Sarah is holding back tears. "Tony—Ziva—Agent Gibbs. I don't think Peter has anything to do with this. I know I don't. If I am involved it was never intentional. I would never do anything to hurt any of you. Or to hurt anyone on this base."

"I know you wouldn't, Sarah," Tony says. "I believe you. I really do. But you need to stop talking now. You have the right to remain silent. Anything you say can and will be used against you in a court of law."

"You're reading me my rights?"

"Actually, I'm reciting them, because after all these years I know them by heart. You have the right to an attorney. If you can't afford one an attorney will be provided. Agent Burns, please contact Judge Almeira. And get that damned frame out of my office. Agent Allen, please take Agent Cosgrove into custody and escort her to the brig."

"Seriously, Tony?" Tawan asks. "We're arresting Sarah?"

"I'm afraid so, Tawan. Now get moving. All of you."