I must be getting old...

[IceShade]

I must have been lucky then. I've always done it on the first go, even with civilians staring at me. Even with the victim just looking at me.

Ask for his pistol, pop him in the head, put the pistol on his corpse .. and wait for the log to be updated. Done.

Remember the very last step; to put the pistol on his corpse. Otherwise, they said, they're forced to shoot you, because it didn't look like a suicide.