Not guilty plea from professor in killings

HUNTSVILLE, Ala. – Pale, thin and dressed in a red jail uniform, a Harvard University-educated biology professor pleaded not guilty by reason of insanity to capital murder charges Thursday in the slayings of three colleagues killed during a faculty meeting at the University of Alabama in Huntsville.

Amy Bishop, who was mostly silent during a hearing, looked down at a table as one of her lawyers entered the pleas on her behalf.

Bishop is accused of pulling a gun out of her purse and opening fire during a February 2010 faculty meeting, killing three professors and wounding three other colleagues. Police and people who knew Bishop have described her as being angry over the school’s refusal to grant her tenure.