Lafayette Police Chief Jim Craft said Friday evening that the .40 caliber Hi-Point semiautomatic was legally purchased at a pawn shop in Phenix City, Alabama in February 2014.

Police did not immediately say who made the purchase.

They also said that Houser went to the theater more than once, potentially to see “whether there was anything that could be a soft target for him,” Craft said, according to the AP.

The gun’s history was the latest in a series of developments Friday in the case.

Police said they found 15 shell casings at the scene.

They say Houser opened fire around 7:30 p.m., reportedly during a screening of Amy Schumer’s movie “Trainwreck.” Officials said 25 tickets to the movie were sold.