Law & Order: UK: Survivor's Guilt

SYNOPSIS

A drive-by shooting outside the Old Bailey leaves one police officer dead and another wounded in what appears to be an attack on a witness giving evidence in an attempted murder trial. As Ronnie and the team investigate further, they are surprised to discover that the gunman was actually aiming for the police - believing his family to be victims of a cover-up. Is the trial at risk of being derailed?