COLUMBIA NOOSE INVESTIGATION TAKES A TWIST:

A Manhattan grand jury has subpoenaed the university records of the controversial black Columbia Teachers College professor who found a noose hanging from her office door – signaling that the investigation is broadening to examine possible links between the teacher, her closest friends and the racially charged incident, The Post has learned.

According to sources, the subpoenas obtained recently by the NYPD Hate Crimes Task Force and prosecutors demanded the college hand over a laundry list of records pertaining to embattled professor Madonna Constantine, whose colleague found a 4-foot hangman’s noose on her office doorknob last October.

The incident happened at the height of the school’s probe of plagiarism charges against her.

(Via JWF, who offers a prediction).