Authorities investigating the case said they are scrutinising the 2,300-word manifesto further for more details. (Photo: Reuters)

Horrific details have emerged in relation to the shooting incident on Saturday at a Walmart store in El Paso, Texas.

The suspected 21-year-old gunman, who killed 20 and injuring at least 26 people, posted an anti-immigrant manifesto just 19 minutes before the incident, reported The New York Times.

The hate-filled, anti-immigrant post that he posted, spoke of the Hispanic invasion of Texas. It also detailed a plan to "separate America into territories by race". The racing post also warned that white people were being replaced by foreigners.

In the post, the shooter also admired the action of the Australian man who massacred to two mosques in Christchurch, New Zealand earlier this year. The incident left 51 people dead.

Authorities investigating the case said they are scrutinising the 2,300-word manifesto and trying to determine whether it has been written by the man who was involved in the fresh shooting incident.

Patrick Crusius, the 21-year-old white man from Allen, also mentioned in the hate manifesto that the way of life can be more sustainable if "we can get rid of enough people".

The manifesto, titled "The Inconvenient Truth" draws direct inspiration from the mass murder of Muslims at two mosques.

The manifesto, which is most likely linked to the El Paso killings, read: "In general, I support the Christchurch shooter and his manifesto. This attack is a response to the Hispanic invasion of Texas."

The fresh shooting at El Paso was one of the deadliest shooting incidents in the United States since November 2017. The attacker killed the people using an assault rifle, raising further questions about US gun laws.

Several witnesses present at the scene of the incident said that the killer was dressed in black and wore ear-muffs.

In the hate-filled manifesto, he also mentioned that he is against "race-mixing" as it destroys genetic diversity and creates identity.

The 2nd and 3rd generation Hispanics form an inter-racial union at a much higher rate than average, which is yet another reason to send them back, he added.



