But what Raahi Grover can talk about is still undecided.
Defense lawyers for Dharun Ravi want to exclude an email Grover wrote about what he observed and heard from Ravi's roommate, Tyler Clementi.
They say jurors should not hear that Clementi said he believed Ravi should be punished.
Clementi killed himself days after the alleged spying in September 2010.
Ravi is charged with bias intimidation, invasion of privacy and other counts.
