Reports are identifying the suspected gunman of the shooting at a Walmart in El Paso, Texas, that killed at least 20 people as 21-year-old Patrick Crusius. Although authorities have not yet officially identified Crusius as the suspect, El Paso Police Chief Greg Allen confirmed earlier reports that authorities are looking at what appears to be a manifesto that the suspect posted shortly before the shooting. “Right now we have a manifesto from this individual that indicates to some degree a nexus to a potential hate crime,” Allen said.

The manifesto is 4 pages long. It is vile, references white supremacist literature and is filled with seething hatred towards Hispanics and immigrants. — Scott Stedman (@ScottMStedman) August 3, 2019

Although nothing is confirmed, online sources quickly linked to a four-page document posted on 4chan and 8chan and other places online. Titled “The Inconvenient Truth,” the document is an anti-immigrant screed that takes particular aim at the Hispanic community and expresses support for the Christchurch, New Zealand, shooter who opened fire at two mosques in March and killed 51 people. “In general, I support the Christchurch shooter and his manifesto. This attack is a response to the Hispanic invasion of Texas. They are the instigators, not me. I am simply defending my country from cultural and ethnic replacement brought on by an invasion,” begins the screed. The manifesto includes lots of white supremacist language, such as claiming that the writer was “against race mixing.” It hardly seems a coincidence, then, that the shooting took place in El Paso, a city that is just across the border from Mexico.

A law enforcement official in El Paso told me the Walmart shooter is in custody. Patrick Crusius of Dallas. Just turned 21 years old this week. pic.twitter.com/CEJh6rYij1 — Anna Giaritelli (@Anna_Giaritelli) August 3, 2019

The writer of the alleged manifesto also went into details about the shooting but claimed he “didn’t spend much time at all preparing for this attack,” saying he had to “do this before I lose my nerve.” If it is the killer’s manifesto, though, something seems to have changed in his thinking. The writer of the document said that “my death is likely inevitable” and being detained was “far worse than dying.” Reports claim police were able to detain Crusius without incident.

Just heard from @EPPOLICE who say the suspect in custody is a white male in his 20’s. He was taken into custody without incident. No police fired. Helicopters still in air at scene. @CBS4Local @KFOX14 pic.twitter.com/mIrOnh5FMA — Mills Hayes (@MillsKFOX_CBS) August 3, 2019

Crusius’ social media accounts were all taken down relatively quickly but not before some were able to detect that he liked a lot of alt-right content. He liked tweets that had the #BuildtheWall hashtag as well as “a photo using guns to spell out ‘Trump,’ and posts from Paul Joseph Watson, a far-right Youtuber who works with Alex Jones at InfoWars,” notes the Southern Poverty Law Center.

At least 19 people are dead and several injured after the mass #walmartshooting in #ElPaso.



A Twitter account bearing the suspect’s name contains “BuildTheWall” hashtags, a photo of guns spelling out “Trump” & liked tweets from a far-right Youtuber. https://t.co/Kfno444Zty — Southern Poverty Law Center (@splcenter) August 3, 2019

Crusius’ last known address was in Allen, Texas, which is a suburb of Dallas. It isn’t clear if Crusius had a connection to El Paso or whether he traveled the 660 miles between the two cities specifically to carry out the shooting. Texas state Rep. Jeff Leach confirmed Crusius lived in Allen and graduated from Plano Senior High in 2017. Collin College, a community college in the area, issued a statement confirming that a student named Patrick Crusius was enrolled from fall 2017 through spring 2019.