A Harvard-educated biologist who went on a shooting rampage during at an Alabama university, killing three colleagues and wounding three others, was jailed for life without parole.

MORE than 23 years before a college professor was accused of shooting six of her colleagues, her teenage brother died from the blast of a shotgun she held in the kitchen of her family’s home in Massachusetts.

A biology professor at a southern US university has been charged with murder over the shooting deaths of three fellow biology professors at the campus.