Updated July 24, 8:20 a.m. EDT:

John Russell Houser was a drifter, CNN reports. He fired at least 13 shots in the theater before running into the parking lot. Upon hearing police sirens, Houser went back inside and fatally shot himself.

The two victims have been identified as 21-year-old Mayci Breaux, who was killed in the theater, and 33-year-old Jillian Johnson, who died after being transported to an area hospital. Both were Louisiana natives.

Houser was staying at a nearby Motel 6. Police said the room had multiple items to help Houser disguise himself, such as wigs and glasses.

Updated July 24, 8:20 a.m. EDT:

The shooter has been identified as John Russell Houser, according to CBS News. More details to follow.

Updated July 24, 6:07 a.m. EDT:

Updated July 24, 2 a.m. EDT: Police are checking out suspicious packages inside the Lafayette movie theater after a dog alerted them to a backpack and some other items left behind, according to the Associated Press. Earlier in the evening, the bomb squad was called in after the shooter's car was identified and several suspicious packages were discovered in the car.

A shooter opened fire during a screening of "Trainwreck" on Thursday evening at the Grand Theater in Lafayette, La., according to The Daily Advertiser. Three are dead, including the shooter, and seven others are injured. The shooting occurred during the 7 p.m. showing of the Amy Schumer comedy about 20 minutes into the movie. The shooting was contained in one theater, according to KATC.com.

Acadian Ambulance transported victims to the hospital and their injuries range from critical to non-life threatening. Our Lady of Lourdes is treating at least three people, according to KATC.com. Other victims were taken to Lafayette General, and a hospital spokesman said no details on the patients will be released until the morning, according to The Advertiser.

"We heard a loud pop we thought was a firecracker," moviegoer Katie Domingue told The Advertiser. She claims an "older white man" was standing and shooting down, but not in her direction. Domingue heard six shots before she and her fiancé fled the theaters, leaving her shoes and purse behind.

"He wasn't saying anything. I didn't hear anybody screaming either," Domingue said.

The shooter eventually pulled the gun on himself, City Marshal Brian Pope told The Advertiser. Lafayette Police Chief Jim Craft announced in a press conference that they had identified the shooter but would not release his name and only described him as a white male, age 58, who used a handgun.

Police are cruising the theater parking lot to keep people away from the crime scene. They also closed the other movie theater in town as a precaution, but had no reason to believe there was another active shooter in the area. "We don't know if this was just a random act or whether it was a domestic situation," Craft said, according to The Advertiser.

Gov. Bobby Jindal confirmed the shooting on his Twitter and headed directly to Lafayette from Baton Rouge. He also spoke during the press conference asking for everyone to keep the victims and the families in their prayers.

Amy Schumer also released a statement on her Twitter expressing her condolences for the victims.

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