Bored Ramblings II: Object of Importance

Take a listen to this scenario I came up with:

On Monday, 2 bodies were found in a home, one of Alex, the other of Bradley. A bloody knife was found beside the bodies with both victims fingerprints on it, but Alex was the only one with any stab wounds. Bradley had 2 bullet wounds, but the revolver had no fingerprints and 3 bullets left in the chamber.

How could this have transpired?

Keep in mind that both were wearing gloves and no one else was involved.

PM me for my answer.

-Orion