I have been reading much CNN and ABC online news, and watching the network coverage, but only the Root blog seems to have this extra information on the killings at the University of Alabama Huntsville:

The three University of Alabama Huntsville faculty members who were killed Friday were all people of color. Gopi Bodila, the, the chairman of the biology department, was of Indian origin. Dr. Adriel Johnson, an associate professor, and Dr. Maria Ragland Davis, an assistant professor who specialized in plant sciences, were both African-American. Amy Bishop, a Harvard PhD who was denied tenure, has been charged with capital murder in the killings. Three other faculty members were wounded, two of them critically, at a faculty meeting on the Alabama campus.

The alleged shooter is a white woman from Massachusetts, with a Harvard degree. The media interviews with family and other there suggests this may have been an incident involving tenure not being granted.