The text contains racist rhetoric, blaming immigrants and Latinos for taking away jobs from Americans. Law enforcement officials are investigating a document posted there that is believed to be authored by the suspect, 21-year-old Patrick Crusius. ( JTA) - Not long after news that a shooting at a Walmart in El Paso, Texas, left at least 22 people dead, reports started swirling that the suspect had posted a manifesto on 8chan, an online forum.