Why didn't Kolchak's Friend Help?
SPOILER ALERT!
At the end of the movie, Kolchak goes to the D.A.'s office and finds out that he's been doublecrossed. Kolchak's friend, Bernie Jenks, tells Kolchak that he can't help him out with his trouble with the Vegas police. Why not? Jenks was an FBI agent, and he witnessed what happened between Kolchak and the vampire (Janos Skorzeny). Jenks saw that the guy really was a vampire.
I don't understand why Jenks acted like he was totally helpless.