A man has been arrested on suspicion of first-degree murder and child endangerment charges after the Johnson County Sheriff's Office says he left two children in a car on a hot day.On Sept. 3, 2025, sheriff's deputies responded to a medical call near K-10 and Kill Creek Road near De Soto. They found the suspect, Tyler Pence, and two children, ages 1 and 3.Deputies performed lifesaving measures on both children. The 3-year-old was pronounced dead at the scene.