Seventeen-year-old Donterrius Jackson was shot and killed in front of his Tunica, Mississippi, home in March 2014. His mother says the killing came after months of cyberbullying; she reported that another young man had been posting death threats against her son online.

The classmate accused in the case is Cortez Bass. After an investigation, Bass was arrested and brought to trial on charges of murder and weapons possession. The trial began in June 2015. Prosecutors presented graphic crime-scene evidence and testimony from the lead investigator; family members in court were visibly distressed. Reports said the alleged online threats would not be shown at trial because it could not be proven Bass made the posts.

Who knew Donterrius or was in Tunica at the time and can share what happened in the months before March 2014?