Theory 1: Her Death Was a Tragic Suicide
The main police theory was that she spent most of the time in the hotel room preparing for her suicide. In fact, one report indicates that the police were 99.9 percentsure that her death was a suicide. There's a possibility that she suffered from mental distress and wanted to die alone where nobody could find her.
But the details in the case didn't quite make sense for a suicide. First of all, she held the gun in an odd position. Given her grip (with her thumb on the trigger and hand on the other side), the weapon should have fallen out of her grasp. The gun, after all, had a powerful recoil. Moreover, investigators didn't find any blood spots on her hands, which is unusual. Two shots were fired: a test fire through the mattress and one shot through her head. Investigators located blood in the ceiling, but they didn't find any blood on her hand. And last, but not least, she had 25 rounds, and it seemed strange that she would need this many.