NEED TO KNOW

Lester Holt launched a new podcast on the case of Robert Roberson, who has been on death row for more than two decades

Roberson was convicted of murder in the 2002 death of his 2-year-old daughter

Since Roberson's conviction, doubt has grown surrounding the science used to find him guilty

As a Texas man whose murder conviction has long been questioned is set to be executed, Lester Holt has debuted a new podcast taking an in-depth look at the case.

Robert Roberson has been on death row for more than 20 years after he was convicted of murder in the 2002 death of his 2-year-old daughter, Nikki Curtis.

At the time, prosecutors claimed Nikki had died of shaken baby syndrome and that Roberson had killed her, the Associated Press previously reported.

But Roberson's atto

See Full Page