(John)
*You appear to be*
An internationally known and respected photographer. You take pictures and portraits of only the most wealthy and elite. How appropriate that you'll be taking pictures of the guests on this weekend retreat. As part of your profession, you have a talent for blending into the background, so no one knows you very well.
*You really are*
An internationally renowned jewel thief. Photography is the perfect cover; it brings you into contact with wealthy, socially prominent people who always wear their best jewels for their portraits. The photos give you the opportunity to plan the perfect crime, and no one is suspicious (or even notices) when you leave early.
*Last night you were*
having a casual affair with Miss Grey, but you're starting to think she's gotten too involved. You left her to play some poker with Quicksilver, White, Mustard, Burgundy, & Steel in the Study. After a little bit you and Mustard left for your rooms. You're in the Lounge when Grey comes out of the Library looking for you with a gleam in her eye. You let your irrational urges take over and have your way together for a brief while in your room (now it's a full-fledged affair ;) ). When done you ask for her to go back to her room before Steel returns. You also don't need the complications of hiding the affair from her boyfriend, Mr. Steel. She obeys and now you have the night to yourself to rob whatever you can. You are quite successful: jades from Miss Jade's room (she wasn't there), onyxes from Baroness Onyx, pearls from Miss Pearl (she wasn't there), gold watch from Colonel Mustard (he wasn't there), money wad from Captain Quicksilver's pocket while hiding in the shadows of the hallway (someone with a light was in his room) and various gems from Princess Sunkist (in that order). You were actually in Miss Jade's room when you heard a gun shot - you used the opportunity to enter the other rooms unnoticed. You hid the black velvet bag of loot in one of the large potted plants to be picked up tomorrow on your way out. Unfortunately, you hear about the murder and when you try to leave, your bag is missing! You decide you better stay to find them and so you don't make yourself look like the murderer.
*Advice*
You didn't kill him, but you have a lot to hide. You need to keep Grey at bay so you don't look suspicious to Steel though you may need to placate her in case she gabs about you to someone. You need to find out who has those jewels - that was a lot of work and big score you can't leave behind. If the Inspector gets the jewels or gets on to you, you may, as a last resort, try to bargain your way out with the info you have about who was with who last night. Obviously avoid the sheriff, but not too much. ;)