The Brief Deja Coleman is scheduled for a hearing Tuesday in Gwinnett County after being charged with second-degree murder in the death of her 1-year-old son. A Gwinnett County mother charged with second-degree murder after her 1-year-old son died in a hot car is scheduled to appear in court Tuesday for a preliminary hearing. What we know:Deja Coleman was charged after the child was found unresponsive in the back seat of her vehicle late last month. PREVIOUS STORIESWhat they're saying:Her attorney argues that the second-degree murder charge should be dismissed, saying Coleman was sleep-deprived and made a devastating mistake. Supporters have argued that prosecuting Coleman would not bring her son back and could further harm her two surviving children.