WATCH: Atlanta suspect was inside first spa for more than an hour before shooting began
Washington Post screengrab.

New information is coming out about the actions of the man accused in the spree shootings at Atlanta-area Asian massage parlors.

"The suspect in the shootings at three Atlanta-area spas entered Young's Asian Massage more than an hour before gunfire was reported at the business, the beginning of a rampage that left eight people dead, most of them Asian women, surveillance video obtained by The Washington Post shows. The video shows that Robert Aaron Long first spent an hour sitting in the parking lot outside the shop," the newspaper reported Friday.

"He then entered and 1 hours and 12 minutes elapsed before he was seen leaving the establishment and getting into his car. Several minutes later, people appear in the parking lot and police arrive. The length of time that Long spent inside Young's was previously unknown. It's unclear what he was doing for the hour after he was seen entering the spa and before the shooting began," the newspaper noted. "Through visual analysis of the surveillance video, The Post determined that the man seen in the footage is Long, as the images match photos of the suspect released by the Cherokee County Sheriff's Office. During the 1 hour and 12 minutes after Long entered the building, the video shows cars driving up, and people coming and going. The video does not appear to be manipulated."