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On Sunday night, at around 10 p.m. local time, a suspected lone gunman identified as Stephen Craig Paddock opened fire at the Las Vegas Route 91 Harvest country music festival, killing at least 58 people and injuring at least 400 others. Victims' names have yet to be released, but Las Vegas Sheriff Joe Lombardo has confirmed that one officer was killed and another remains in critical condition.

Paddock was found dead by officers in a hotel room on the 32nd floor; he reportedy took his own life.

The massacre is the worst mass shooting in U.S. history.

Reports are continuing to pour in, but here's what we know about the alleged shooter and a female companion, person of interest Marilou Danley, in the case so far.

1. The shooter, Stephen Paddock, was a 64-year-old local man from Mesquite, Nevada, and was "known by police."

There have been reports that the gunman lived in a retirement home, though this remains unconfirmed. His hometown, Mesquite, is a small town that contains a few retirement communities.

See the confirmed image of Paddock from companion Marilou Danley's Facebook page, below:

2. Paddock used a fully automatic weapon. Additionally, upon searching the suspect's home, officers found "several weapons."

3. According to Las Vegas Sheriff Joe Lombardo, the motive remains unclear but is not suspected to be terrorism, meaning it was likely not associated with a political or religious aim.

"No," said Sheriff Lombardo, when asked the massacre was a suspected "act of terrorism."

"Not at this point," he said. "We believe it was a local individual. He resides here locally. I’m not at liberty to give you his place of residence yet, because it’s an ongoing investigation, we don’t know what his belief system was at this time. … Right now we believe he is the sole aggressor at this point and the scene is static.”

Paddock's brother, Eric Paddock, told the Daily Mail Monday morning that his brother must have "snapped," and said he had no political or religious affiliations that he was aware of. Read the full comments of the shooter's brother here.

4. Paddock was suspected to be the lone gunman, but officers have identified and found a person of interest, the shooter's female companion Marilou Danley.

Danley, 4'11 and 111 pounds per Sheriff Lombardo, was reportedly traveling with Paddock, and has been located by officers.

UPDATE 9:45 a.m.: According to Sheriff Lombardo, Marilou Danley was found in the Philippines and is no longer a person of interest. Paddock reportedly utilized her ID.

UPDATE 10:00 a.m.: Paddock was found dead by officers in a hotel room on the 32nd floor; he reportedly took his own life.

UPDATE 10:15 a.m.: The suspect's brother spoke with the Daily Mail and gave a TV interview in which he said there were no warning signs and the attack made "no sense."

UPDATE 11:30 a.m.: ISIS claims credit, claiming Paddock converted to Islam months ago, but it could be a false flag.

UPDATE: 3:00 p.m.: Paddock's father was a "'psychopath' with possible 'suicidal tendencies' who was once on the FBI's most-wanted list." The Daily Wire reports:

Benjamin Hoskins Paddock, the father of the Las Vegas shooter, was a serial bank robber and con-man who a 1960s FBI escaped prisoner poster described as "psychopathic" and "extremely dangerous." In fact, he was so dangerous that he was put on the FBI's most-wanted list for a number of years after escaping prison in the midst of a 20-year sentence for robbing a series of Arizona banks.

Read the full report here.

Daily Wire will continue to provide updated information.