JEFFERSONTOWN, Ky. — A gunman fatally shot a man inside a Kroger and then killed a woman in the grocery store’s parking lot before exchanging gunfire with a bystander, police said. Officers then captured the suspect as he tried to flee. Gregory Alan Bush, 51, was booked early Thursday on two counts of murder and 10 counts of felony wanton endangerment, according to Louisville Metro Department of Corrections records. Jeffersontown Police Chief Sam Rogers said in an initial news conference at the scene that “we have no idea” what motivated the shootings.