CSI investigates the murder of Matthew Stone, the young cancer-stricken inventor of the revolutionary Solamyrge phone, when he is murdered by a sniper weapon. Inside Stone's penthouse, they find a bug planted by Jerry Blackburn, Stone's acting CEO, who reveals that he was keeping tabs on Stone because the cancer medicine was making him reveal company secrets to the press. In Stone's skull, they find a smart bullet, which is a fully programmable projectile. When the Solamyrge logo is found on the bullet, the team interrogates Blackburn, who admits that they began developing high-accuracy weapons when Stone's younger brother was killed by friendly fire in Iraq. However, when gang members attempt to rob a bank with the stolen gun prototypes, they discover that the faulty guns backfire on the shooter. By calculating the distance and angle from Stone's penthouse, they determine that Raj Andori, Stone's former partner who dropped out of the company in its infancy,More... must be the shooter and find the murder weapon in his apartment. However, Stone paid Raj to kill him, so that the CSI team could investigate the case and stop Blackburn from mass producing and selling the faulty weapons to the military.