An ex-convict's past will catch up to him resulting to a gruesome murder as Arastroo will have to decide whether to choose family over love, the latest spoilers from "Bones" season 10, episode 13 reveal.

Arastroo Vazirir, played by guest star Pej Vahdat, is caught between a rock and a hard place as he wants to visit his dying brother in Iran, but it's causing tension between him and Cam.

"Bones" season 10, episode 13 spoilers can be gleaned from the synopsis which reads, "Brennan and Booth investigate after a former convict's body is found in bits and pieces. As they focus on picking apart his post-prison life, they realize that his past may be the lead to the murderer."

"Elsewhere, Vaziri must decide whether to return to Iran for a dying relative, or stay in the US as Cam prefers."

The Jeffersonian Team soon finds out that the victim was previously involved in a robbery gone bad, which makes his cohorts the likely suspects.

The promo clip teased spoilers for "Bones" season 10, episode 13 as it shows Agent Booth looking quite worried as he looks at the killer's MO, "It looks kind like a sick ceremony."

In another scene, Brennan conducts an autopsy and comments, "They were all killed in the same manner."

Cartermatt said the teaser clip "felt like we are watching a promo for almost any crime show out there."

"There's a crazy murderer doing ritualistic things to his or her victims, and Booth and Brennan are on a race against time to stop them. What makes this show stand out is its quirkiness, charm, and unique characters, and we don't really get a whole lot of that here to add to the synopsis," it said.

Watch out for more "Bones" season 10 spoilers which will be published here as they come along.