"As for the Tyler Clementi Case, do you think the defense lawyer is going to file motions to get rid of some of the 15 counts against Dharun Ravi prior to their June 25th meeting with the court. Or is he going to wait to do it at the meeting. During the Duke Rape Case, defense lawyers were filing motions all the time."
Different lawyers employ different strategies when it comes to things of this nature. I would expect the lawyer to employ a strategy of demurrer, motion to dismiss as well as motions to suppress evidence to narrow down the prosecution case. I do not have access to the police reports, witness statements and the like in this matter obviously so it is difficult to say exactly what he will do or when. But at a minimum he will try to exclude any theories supported by shaky evidence, knock out as much of the other evidence as he can and probably try to negotiate for a reduced sentence to a lessor charge. This is why prosecutors overcharge cases, so they have something to dump in the negotiations.
The Duke case had serious problems not the least of which was a prosecutor who was lying through his teeth so I would not use that case as a model. There seems to be little doubt that the actual event happened.