Mexico's attorney general is considering litigation against the 'terrorist' attack at a Walmart store in El Paso, Texas, the country's foreign minister announced.
"This individual is a terrorist," Mexican Foreign Minister, Marcelo Ebrard, said at a news conference on Sunday, adding that prompt legal action will be taken.
"What happened is unacceptable and... the first legal actions that the Mexican government will take will be announced," said Ebrard, adding the president had instructed him to take "efficient, prompt, expeditious and forceful legal actions for Mexico."
Ebrard, who did not specify in which court the complaint will be lodged, said his ministry would request information from the United States on how the shooter acquired the weapon he used,
and whether US officials were aware of the purchase.
"The fact that Mexicans have lost their lives, forces us to take the corresponding legal actions with respect to arms," he said.
Mexican President, Andres Manuel Lopez Obrador, said that Mexico would push to make sure that authorities would be held accountable.
Mexico's deputy foreign minister for North America, Jesus Seade, decried the shooting as "xenophobic barbarism" and called for an end to rhetoric that incites such acts.
Media sources identified the suspected terrorist as 21-year-old Patrick Crusius, claiming he is a Trump supporter who has shown “no remorse” and “no regrets” for his act of terrorism.
Crusius turned himself in without incident after the shooting on Saturday, according to a law enforcement official.
Less than 20 minutes before the shooting, Crusius is said to have published a manifesto on 8chan, a notorious internet forum.
CEO of the Cloudflare server company, which provides internet infrastructure services to 8chan, confirmed this.
“In the case of the El Paso shooting, the suspected terrorist gunman appears to have been inspired by the forum website known as 8chan. Based on evidence we've seen, it appears that he posted a screed to the site immediately before beginning his terrifying attack on the El Paso Walmart killing 20 people,” Matthew Prince, Cloudflare CEO wrote in a blog post Sunday evening.
In his manifesto, Crusius described his attack as "a response to the Hispanic invasion."
He also wrote an astonishingly direct echo of Trump's rhetoric.
The manifesto directs the phrase "send them back" at Latino Americans.
The words are reminiscent of the "send her back" chant heard at the president’s North Carolina rally last month.
"Send her back!" a sea of Trump supporters in Greenville roared when he reeled off the names of the ethnic minority congresswomen, whom he has urged to "go back" to their countries of origin in a series of tweets, which analyst believe fire up his Republican support base.
Democrat presidential candidates, Pete Buttigieg and Beto O'Rourke, accuse Trump of encouraging racism. A majority of Democrats in the House of Representatives have called for Trump's impeachment.