"That's right, these guys were worried we'd consider them deserters, and they ran off early, but..."
Robbin turned the computer: "They're all dead."
"Radiation..." Someone was about to mention this, but then realized, "They ran off so early... could they have been unaffected by the radiation? Is that what you mean, boss?"
"Exactly!" Robbin said through clenched teeth, "But they still died."
Immediately, someone chimed in, "Someone killed them!"
Robbin nodded, "We need to take a trip there."
"Boss, it's pointless, the half-life of radioactive material is just seven or eight days, it's been so long now, what can we find out?"
Robbin paused mid-stride, yes, what could they possibly find out now?
"What about the guy who came back alive?"
"Don't know, weren't we not monitoring anymore?"
"Let's go. We need to find him."
Soon, the FBI's car appeared in front of the house they had visited previously, but the door was opened by a strange couple.