JACKSON, Miss. — Jackson police have made two arrests in connection with the shooting death of Chelsie Lynn Kirschten. Kirschten, 23, was shot and killed Aug. 17 as she sat in her car waiting on a red light at Fortification and State streets, according to police. The gunman said nothing when he walked up to the driver’s side closed window of Kirschten’s white Pontiac G6 and shot her in the back, police said. A passenger in Kirschten’s car told police that the gunman, who was wearing dark clothing, didn’t take anything after the shooting and walked away, investigators said.