Connor Sturgeon, 25, bought the AR-15-style weapon from an authorized seller, interim Louisville Police Chief Jacquelyn Gwinn-Villaroel told reporters.

“We have also learned that he purchased the weapon used in this tragic incident yesterday on April 4,” she said. “He purchased the weapon legally from one of the local dealerships here in Louisville.”

Gwinn-Villaroel, quoted by CBS News, said Sturgeon’s home was searched, but offered no details about what officers found inside.

Rep. Morgan McGarvey, a Democrat who represents Louisville, revealed that the shooter had sent disturbing text messages signaling he was considering harming himself before Monday’s shooting.

“We know he left a note, we know he texted or called at least one person to let them know that he was suicidal and contemplating harm,” McGarvey said. “But we don’t have the tools on the books to deal with someone who is an imminent danger to themselves or to others.”

Deana Eckert, 57, was rushed to the hospital following the shooting barrage and died Monday night.

Four others — Joshua Barrick, 40; Thomas Elliott, 63; Juliana Farmer, 45; and James Tutt, 64 — died earlier in the day.

All five were victims of “multiple gunshot wounds” with homicide listed as the cause of death, Jefferson County Coroner’s Office records revealed Tuesday.

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