Sources say these family members are being called as witnesses and not only that, at least three agencies are working around the clock to protect and transport them. This is all part of the defense team’s strategy to save Tsarnaev. While it’s unclear when their flight started, we know the last part of it came through Amsterdam and landed at Logan Airport and cost nearly $2,500 per person.

The cost to put them up at the Hampton Inn at the government rate: almost $200 per night, per person. And a source says at least three agencies, the FBI, US Marshal’s and Revere Police are involved in constant protection.

“I think you’re probably talking about $100,000 plus in that neighborhood in terms of security and out of pocket costs associated with travel,” former US attorney Michael Sullivan said.

And that’s just for this trip.