I'd say write the murder from the POV of the victim and have him/her be disoriented and confused, leaving the actual perpetrator of the crime a series of blurs and dark shadows. Focus on the sensation of the murder...the feel of the knife, or the weakness and chill of blood loss. If they're suffocated, focus on the struggle to get air and the light-headedness/heavy eyelids. Panic, pain, and ultimately...nothing. That way, your reader gets the full brunt of the murder and all the emotion, but without any information about the killer.

It's the writing equivalent of the shower scene from Psycho.
-Quaddy

Check this Out!

The Earth Rising Quartet  (XGC) Five-hundred years ago, Earth lost its rebellion. Now it's time for it to rise again... #1837269 by Professor Q

Come Join In!

The Dissolution of Alkonost   (GC) A desert metropolis falls and magick fails in its seams. Who dares rise to save it? #1968212 by Professor Q

Great Contest Alert!

Invalid Item  This item number is not valid. #1897404 by Not Available.