Mom pushes for answers in son's killing with increased reward

Two years after her son’s death, the mother of Tyler Johnson is asking for donations to increase the reward for information that leads to an arrest in the case. Tomika Alexander is raising money to boost the Crime Stoppers of Michigan reward for the killing of her son from up to $2,500 to $10,000. Anyone with information in the case can call Crime Stoppers at 1-800-SPEAK-UP.