The suspect in the Kalamazoo shootings visited a gun store on the day of the attacks and bought a jacket designed to conceal a handgun, according to the store owner. Here's what we know about Jason Dalton and his gun collection.

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DALTON HAD A PERSONAL ARSENAL: Dalton had a personal cache of weapons that included handguns and long guns, authorities have said, but there was nothing in his past that prevented him from owning as many guns as he could afford. With no criminal history or record of mental illness, Michigan residents who follow requirements can legally acquire any number of firearms.

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SUSPECT SEEN ON STORE VIDEO: On surveillance video, Jason Dalton was seen "laughing and joking" and gave the manager of Southwick's gun shop a "one-armed hug" before making the purchase. Owner Jonathan Southwick said Dalton did not buy a weapon there.

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STORE OWNER RECALLS SELLING TO DALTON: The owner of another gun shop said he sold guns to Dalton but did not know if he sold the weapon used the night of the shooting rampage. Jeff Cramer of the On Target gun shop in Kalamazoo said Dalton purchased long guns from the store. He did not know if the store ever sold him a handgun.