I think its rediculous how people shove off the possibility of it being an insect purly because it is blue. If you look, the colors that the security camera pick up are incorrect. When the reported is speaking to the security camera, her suit appears indigo or blue. However, when the camera switches to the one the news station uses, she is wearing red. Clearly, the only reason this "ghost" is blue is because of poor color quality on the security camera. My theory? A moth.