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Esteban Ruiz Santiago Image Credit: AP

Miami: A US judge on Tuesday ordered the Iraq war vet accused of shooting five people dead in a Florida airport be held without bail as his court case proceed.

Esteban Santiago, who is also accused of wounding six people in his January 6 shooting spree at the Fort Lauderdale airport, told investigators that he had been visiting “the dark web” to communicate with extremists and members or sympathizers of Daesh the local Sun Sentinel newspaper reported.

Santiago appeared handcuffed and wearing the red jumpsuit of a maximum security prisoner to answer questions Tuesday in the court of US judge Lurana Snow.

The day of the incident the accused gunman had arrived in Fort Lauderdale — a city some 50 kilometres north of Miami — on a one-way ticket from Alaska.

Soon after landing around noon that day Santiago retrieved a 9mm handgun and ammunition that he had declared and packed in his checked luggage, then opened fire in Terminal 2 of the busy airport until he ran out of ammunition.

Then he dropped to the ground and peacefully surrendered to a sheriff’s deputy.

Prosecutor Ricardo Del Toro told the judge that at various points Santiago “said he carried out the attack because of government mind control,” the Sun-Sentinel reported.

However “he later said he did so because of [Daesh] ... after participating in [extremist] chat rooms.”

On November 7, the same month in which Santiago left his job with an Alaska security firm, Santiago walked into the FBI’s Anchorage office complaining that his mind was being controlled by national intelligence agencies, which were forcing him to watch Daesh group videos, authorities said.

This “erratic behaviour” led agents to contact local police, who took him for a mental health evaluation, FBI agent George Piro told reporters last week.

Santiago will be formally charged with crimes — the most serious of which carries the death penalty — on January 30.

Santiago was born in New Jersey and grew up in Puerto Rico. A former member of the Puerto Rico and Alaska National Guard, he served in Iraq from April 2010 to February 2011 and ended his service in August.

Currently Santiago is being held in solitary confinement under suicide watch at the main Broward County jail.