absolutely 100% sure. this was saturday morning, the 18th, at around 11:00 or so. we left union station and walked towards the building where my friend works, and he said we should drop by the lot of trailers. there was a trailer on the street, inside there was Gotham City police uniforms, and in the lot there was rows and rows of trailers. some of them were facing the sidewalk and had stars with names written in them, but I didn't recoginize any names. just about right as I passed by a trailer, I saw someone step out, and walked about another 10 feet before looking back and recognizing him as Anthony Michael Hall. dead on it was him, and my friend confirmed. I got a look, and he was wearing a purple business suit... though not a dark purple... it was a lavender-ish kind of color, with either black or dark purple pinstripes on it. I dunno if it was a full on costume or what, because two ladies were by him, and he was making movements like he was trying it on. one was adjusting the sleeve, the other was looking at and adjusting the lapel. we walked up the street and down a bit to underneath the El and saw signs for shooting from 3am that night to 8pm on the 19th (today). I was just in town visiting my friend, so I don't know the streets well enough to know where we were at, but we walked by again later and didn't see anything except inside the trailer again, and got a better look at the gotham city cop uniforms.