An alleged white nationalist Trump supporter who carried out the El Paso, Texas, mass shooting reportedly hated race mixing and immigrants according to excerpts of his manifesto. 

The Associated Press reports the suspected gunman, 21-year-old Patrick Wood Crusius, was booked and charged with capital murder for killing 20 people in a Walmart at Cielo Vista Mall. Crusius has been identified as a vehement President Donald Trump supporter. According to details of his manifesto, he was in favor of Trump's "send them back" rhetoric, was “against race-mixing” and had an affinity for “genocide.”

The 2,300-word public declaration was attached to an 8chan message board with a message from him about possibly dying the day of the shooting. In the document, Crusius laid out a disturbing vision of the U.S. overran by Latinx immigrants, in line with President Trump and the Republican party's anti-immigration policies. According to CNN, the El Paso County District Attorney Jaime Esparza said the gunman will be eligible for the death penalty. Authorities have yet to call Saturday's shooting a hate crime, FBI El Paso Special Agent in Charge Emmerson Buie told media.

Among the 20 victims pronounced dead, police estimate there are at least 24 people injured in Saturday's shooting. Authorities confirmed to media Crusius was armed with an AK-47.