Bond of Silence (2010)

Harrowing drama based on a true story. Katy and Bob are a happy couple who have just had twins, until the day that Bob confronts some noisy teenagers and ends up dead. No-one will come forward, so the police go undercover to find the culprit. However, when Katy confronts her husband's killer, she realises that he is just a terrified high school kid who needs a mother rather than an accuser.