A Texas man this week could become the first person executed in the U.S. from a murder conviction tied to the diagnosis of shaken baby syndrome. Robert Roberson, 57, is set to receive a lethal injection

A Texas man this week could become the first person executed in the U.S. from a murder conviction tied to the diagnosis of shaken baby syndrome. Robert Roberson, 57, is set to receive a lethal injection on Thursday for the 2002 killing of his 2-year-old daughter, Nikki Curtis. Roberson has long proclaimed his innocence. His scheduled execution renewed debate over shaken baby syndrome, also known as abusive head trauma.