Detroit is moving to prohibit gas stations from locking customers inside a year after a fatal shooting following an argument. The Detroit City Council approved an ordinance to prevent employees from remotely locking doors, aiming to keep threats outside stores. In a violent incident triggered by a failed $3.80 purchase, a clerk locked the door, resulting in three people being shot and one dying. Legal actions are ongoing with charges including murder, attempted murder, and involuntary manslaughter. The decision to lock the door was deemed pivotal in the tragedy, emphasizing the need to prevent such practices.