Theres also the small matter of the two kids they didnt have back then.
They cant lose that.
Without a head to work with, the team is lost on an ID until Booth gets involved.

Credit: Patrick McElhenney/Fox
You read that right: Whether he likes it or not, Booth is an honorary squint tonight.
He knows a hockey injury when he hears one.
(kindly enjoy the nonspecific jerseys emblazoned with SK8 and a club from a deck of cards.)
Booth lights up: J.R.!
Booth doesnt need that kind of encouragement.
Booth would bring his skates to an interrogation, wouldnt he?
The coach offers up Drew Poppleton, an enforcer.
Aubrey interrogates Drew while Booth takes a shot on goal to help a player win a bet.
Thats gambling-adjacent behavior!)
His priorities have always been in line.
As for Drew, hes pretty dim, but he says he wasnt worried about losing his job.
Plenty of other teams are interested.
This guy cant let it go.
There goes Katies public image.
NEXT: Game of drones
Katie isnt the only one with secrets in this investigation.
Something more is going on here.
Lets go back to that missing head.
The race to be king of the drone is on.
That could definitely contaminate the evidence.
Also, PEOPLE COULD SEE IT.
The FBI is swamped with complaints, so Booth sends Aubrey to give Hodgins and Oliver a stern warning.
Aubrey pretends to comply, but he really doesnt care.
I think everyone in this office is tired and could use a vacation.
Its a good thing the head turns out to be the key to the investigation.
As it turns out, Drew is the father of Alexs baby.
Alex is a corporate drug dealer, supplying hockey players like Drew with painkillers and other illicit substances.
I didnt want my kid to grow up with a mother behind bars, he argues.
Hows a father behind bars sound?
We went the whole case without anyone suspecting Booth of murder; thats aBoneshockey first.
But Daryl does suspect Booth of profiting from a bad call.
Daryl brings a whole crowd of people to cheer him on; Booth just brings Brennan.
Clad in his Flyer gear, Booth looks over at his wife and intentionally misses the shot.
For everything thats changed, hes still that kind of enforcer.
Letting go of pride is one thing.
Letting go of the Cocky belt buckle?
Never going to happen.