You and Zack both work under Temperance. Which was unusual so he kinda didn't like it when he figured out you would be working as her apprentice as well as him. You were both working on a case together while Booth and Tempi were working on the case. You were looking over the bones after Zack did

You're not gonna find anything else I already found it-.. Zack froze as you pointed out a small fracture on the knuckles