The father of terrorist Omar Mateen won't let his son's June 12 killing of 49 people in an Orlando nightclub spoil a good Fourth of July!

Seddique Mateen, to whom Omar was born in New York in 1986, told the Daily Mail Online he considers Independence Day 'a day of pride' that he'll celebrate Monday – just as he has celebrated the annual holiday since arriving in the United States from Afghanistan in 1980.

Here wearing red, white and blue, Seddique Mateen told the Daily Mail Online he considers Independence Day 'a day of pride'

On tap today for the family of the killer whoperpetrated American history's bloodiest mass killing in retaliation for U.S. bombings in Afghanistan: A backyard barbecue, according to Omar's dad.

'It's our decision what to do (on the Fouth of July),' the elder Mateen said as he stood in the doorway of his posh home in Port St. Lucie, Florida. 'It's our pride day.

'We'll put up the flags around the yard and celebrate the Fourth of July. We're going to have a barbecue and we're going to enjoy ourselves.'

Already, Mateen had a small U.S. flag planted in a flower bed over the weekend, and another hand-held Old Glory laid on the dashboard of the aging Mercedes Benz SLK 350 parked in the driveway of his $160,000-home.

Meanwhile, the killer's modest apartment in nearby Fort Pierce, Florida, remained empty this weekend as Omar Mateen's wife, Noor Zahi Salman, has yet to return since the FBI raided the place, according to neighbors.

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Mateen had a small U.S. flag planted in a flower bed over the weekend. He was also planning a Fourth of July celebration with family and friends

A hand-held Old Glory laid on the dashboard of the aging Mercedes Benz SLK 350 parked in the driveway of his $160,000-home

'We're seen nobody coming in and out of that place since the shooting,' a neighbor said from behind her closed door.

Omar Mateen pledged allegiance to ISIS during a phone conversation with authorities during the shooting

A wreath hung on the door of Mateen's condo and members of a Christian group left a card with the address of its church as well as the hours of services.

The couple's aging Honda car is still on the parking lot. Law enforcement stickers that once sealed the doors have been cut, indicating someone has been inside the car since FBI agents searched it hours after the massacre.

Wife Salman remains a suspect in the shooting after she admitted to driving Omar Mateen throughout the area to case possible target. Government officials have asked a federal grand jury to consider charges against her but grand jury proceedings are secret.

As of today, Salman is free.

'She is out of state,' Seddique Mateen said Sunday. 'But I don't know where she is. She's not here.'

Americans celebrate the Fourth of July today in commemoration for the signing of the Declaration of Independence, in which the 13 colonies made themselves free from English rule.

Shortly after midnight slightly more than three weeks ago, Omar Mateen got inside the Pulse nightclub near downtown Orlando. There, a mostly gay clientele of 320 party goers enjoyed Latin night.

A note on the door of Mateen Sr.'s home reads: The families have been answering every question and been very cooperative throughout this time'

Mateen, who pledged allegiance to ISIS during a phone conversation with authorities during the shooting, was armed with an assault rifle and a handgun. He opened fire about 2 a.m., sparking a three-hour standoff involving more than 100 Orlando area police.