The man who led police on Wednesday’s high-speed chase will be charged with aggravated robbery and evading arrest, police said.Artrai Alexander, 40, is being held in the Dallas County Jail. Bail has not yet been set.Police said Alexander stole the Dodge Challenger from a convenience store in the 3000 block of Grand Avenue, near Fair Park.According to police, the owner of the car had left the vehicle running while he went into the convenience store.Police said the man tried to approach the vehicle when Alexander pointed a gun at him and fled.The chase ended in the 8700 block of Walnut Hill Lane, near Abrams Road, when Alexander crashed into a gray minivan and black SUV.The 13-year-old boy in the minivan was transported to Children’s Medical Center Dallas for evaluation. He was released shortly after. The driver of the black SUV was treated at the scene for injuries to his forehead, police said.