Hole, 19, allegedly opened fire at a FedEx facility, near the Indianapolis Airport, claiming eight lives, police said.
Police also said Saturday that the gunman, 19-year-old Brandon Hole, a former employee of the facility who took his own life after shooting the victims, legally bought the two assault rifles used in the attack, despite a "red flag" law in IN created to prevent violent and unstable individuals from buying firearms. He killed himself as officers prepared to enter the building, police said.
This comes after the Federal Bureau of Investigation revealed that Hole's mother had alerted agents that her son might try to commit "suicide by cop", or force police officers to shoot him.
"We know that we have a Hoosier family who cried out for help, knowing they had a child who required mental health treatment".
The Sikh community, many of whose members wear turbans and are often confused for Muslims, have been the targets of hate crimes across the United States since the September 11, 2001, attacks by Islamic extremists on the U.S. The most notable Sikh attack was the fatal shooting of seven Sikhs at the Oak Creek Gurdwara, or Sikh house of worship, in Wisconsin in 2012. Vigils were expected to continue throughout Sunday.
Under Indiana's "Red Flag" law the courts have the power to seize weapons from people who display warning signs of violence. This situation is when an individual will provoke law enforcement to shoot them to defend themselves or civilians.
Michael Leffler, a spokesperson for the Marion County Prosecutor, said on Sunday that the office is "looking into this matter". If a judge were to rule that someone was unfit to own guns, the seizure would stand only for up to a year.
Local media reported that four members of the Sikhs community were killed in the incident, prompting some voices in the community to call for the investigation into the possibility of bias as a motivator in the shooting.
"This shooter had a shotgun confiscated, but he was still able to get his hands on rifles", Dhaliwal said".
Hole was a former employee of the FedEx location but no motive for the shooting has been determined.
The shooting is the deadliest incident of violence collectively in the Sikh community in the USA since 2012, when a white supremacist burst into a Sikh temple in Wisconsin and shot 10 people, killing seven.