Once they've returned and the police enter the place, they find both Camden and Malcolm dead in an apparent murder suicide. But from Shawn's quick glance around the room, he's not convinced. There's more to this case then it appears. Especially since Mr. McCallum now has a cut on his wrist, the rumor being he tried to kill himself. A story Shawn will never buy.
Shawn goes to see Henry, his estranged father, for advice. Henry says Shawn's powers of observation have become soft and he's trusting someone he shouldn't be. That leads him to suspect Camden's sister, Katarina. It turns out, she had nothing to do with it, but the bag she was carrying did – it once contained the ransom money. One of the McCallums did try to pay a ransom, but what went wrong?
It turns out, Mr. McCallum went to pay the ransom and recognized Malcolm Orso's car on the way to the drop. McCallum realizes the whole thing is a scam, and goes to the Orso cabin to find Camden waiting there. Their argument turns heated and Camden falls, slamming his head on the table, killing him instantly. Malcolm walks in and McCallum has no choice but to shoot him and cover his tracks, making it look like a suicide. On his way out, Malcolm's angry dog bites him on the wrist and that is why it's been bandaged.
When the police get to the McCallum house, Shawn proves his theory is true by having a "vision" of consumine, a dog bite medication in McCallum's medicine cabinet (that Gus saw and recognized earlier when he went to the bathroom). Shawn and Gus have solved their first case, which, of course, is more than enough reason for them to open up an office for their new detective agency, "Psych."