UPDATE:

Penn State head football trainer Tim Bream arrived at Centre County District Court Wednesday to testify as a witness in the criminal case against 18 fraternity brothers charged in connection with the death of Timothy Piazza.

His testimony has been highly anticipated as he lived inside the Beta Theta Pi house as a resident adviser but has not yet spoken publicly about what he knows about Piazza's death or what he saw inside the house.

His attorney, however, filed a motion Tuesday to quash a subpoena summoning him to court, in an effort to keep Bream out of the witness chair.

If the judge refuses to grant that, which is considered likely, then the attorney requested that questions to Bream be limited to those only relevant to a defendant's guilt or innocence-- not any potential guilt by Bream.

Magisterial District Judge Allen Sinclair is likely to take up those motions first today, then enter into a contempt hearing to decide whether Bream had tried to dodge service of the subpoena.

Hearings on the Penn State Beta Theta Pi fraternity hazing death 11 Gallery: Hearings on the Penn State Beta Theta Pi fraternity hazing death

A defense attorney had been trying to serve the subpoena for more than a month to get Bream at an Aug. 10 hearing and asked Sinclair for the contempt hearing.

Defense attorneys would like to question Bream about what he knew about pledges being served alcohol and hazing activities inside the house.

It's unclear whether Bream will take the stand and if so, whether he will invoke his fifth amendment privilege.

Wednesday represents the sixth day of preliminary hearings for 16 Beta brothers. Two brothers waived their hearings.

Sinclair set aside three days this week for testimony and closing arguments, starting Wednesday.