Joshua Barrick, Jim Tutt Jr., Tommy Elliott, Juliana Farmer and Deana Eckert lost their lives on April 10, 2023, when a co-worker opened fire at the bank in downtown Louisville.
Earlier this month, the ATF said the weapon would be destroyed by March 15, which was last Friday.
Investigators said the shooter legally bought the rifle six days before the shooting at a local gun dealer.
Four survivors of last April's mass shooting at Old National Bank in downtown Louisville joined the families of two of those killed that day in filing a lawsuit against the local shop that sold the AR-15 to the shooter.
The Louisville community mourned the loss of many souls in 2023, a list highlighted by legends and heroes, hall-of-famers and servants, fathers and friends.
LMPD released a 64-page document Tuesday, making public the details of the investigation.
The update was provided on Sunday.
A week-long fundraising effort for a Louisville Police officer shot in the head during a mass shooting begins Tuesday.
Wilt Week goes from Aug. 1 to Aug. 4.
Shack in the Back BBQ at 10706 West Manslick Road is partnering with Louisville Metro Police Foundation and Relief 4 Heroes for the fundraising event.