Tonys sweet sister

Tony? has 2 little sisters and he watches them. his dad is abusive and he wants full custody of them. One day they get a military school shootings. A hostage situation... what happens when Tony finds out when his 2 little sisters are in the classroom and the gunman is in her class.

Little sister 1: Melody
Little sister 2: Harmony

A tibbs story:Tony/Gibbs