Serial killer Christopher Pelant (Andrew Leeds) makes his return to Bones in the upcoming Season 7 finale, which may explain why Booth is all kinds of fired up in the photos for "The Past in the Present."

In the episode, the imprisoned hakcer is linked to another murder, only this time the victim is a friend of Brennan’s. As previous Bones season finale spoilers have hinted, she may be framed for murder.

Critical pieces of evidence linking Temperance to the act likely contribute to the intense pictures of Booth, who must act fast as this soulless tech genius prepares what could be his most lethal act yet.

Click to enlarge the images - featuring Booth getting rough with Brennan's father, and in what look to be pointed conversations with several colleagues - and share your theories in the comments below: