Bissey called it a short shirt ... but he also said two women got out of "a car."
JASON BISSEY, LIVES NEXT DOOR TO ALLEGED CRIME SCENE: I noticed a car drive up and two young women get out, met with the gentleman and then walked back to the back of the house. Two young women, one of them dressed in a short skirt and high heels, and the other woman was dressed a little more conservatively spoke with the gentleman outside of this door here briefly, and then at this point, all of the young men were inside. They spoke amongst themselves for about five minutes or so and then entered the house.
http://www.msnbc.msn.com/id/12096835/
But Bissey thinks they came together in the same car, so I'm not sure how accurate his observations are.