I choose #2.
That last pic of him alive...he appears to be seated in the shower with hoist arms resting on his knees..and he looked surprised in a way. JMO
I think she had a gun pointed at him. After the first shot she realizes he is not dead..and when she tried to shoot again the gun jammed.
I am one who doesn't believe she came with both weapons..just the gun.
JMO
So you believe the knife was part of the sex play? Where is the silky rope she claims? According to her iirc the knife was all the way in the other room...on the bed.