Madison Lynn Johnson, 21, was fatally shot on the morning of Saturday, May 13, 2023, at a residence on Woodlawn Pike in Knoxville, Tennessee. Officers responding to a reported domestic disturbance were initially concerned an armed person remained inside; crisis negotiators attempted contact but received no response. When officers entered the home they found Madison and her friend, 20-year-old Heidi Johnson, both dead of gunshot wounds.

Investigators soon identified 26-year-old Jair Romario Martin of Knoxville as the primary suspect and believed he had fled on foot. Warrants for two counts of first-degree murder were issued and the Tennessee Bureau of Investigation added Martin to its Most Wanted list. On May 18, 2023, the Knoxville Police Department located Martin at an apartment on Goins Drive and took him into custody without incident; he was formally charged with two counts of first-degree murder. No motive has been released.

If anyone knew Madison or Heidi, or has information about their last movements or the events at the Woodlawn Pike residence that morning, please share what you know.