John Grisham on death row prisoner: ‘Texas is about to execute innocent man’

There was no crime,' says author about Robert Roberson who was convicted of murder based on discredited science

The bestselling writer John Grisham has joined scores of bipartisan politicians, lawyers, scientists and doctors in sounding the alarm that Texas is about to execute an innocent man convicted of a crime that never happened.

Grisham, whose legal thrillers have been turned into such Hollywood blockbusters as The Firm and The Pelican Brief, spoke out on Tuesday about the case of Robert Roberson, 57. Roberson has been on death row in Texas for more than 20 years for violently shaking to death his two-year-old daughter, Nikki.