Salman, 30, said she was present when he bought ammunition and had driven him on

The family home of Noor Zahi Salman, the wife of Orlando killer Omar Mateen, 29, has been raided by the FBI.

Officers pulled up in a dark gray Dodge Charger car at the address, in Rodeo, California, at approximately 3.15pm local time Tuesday.

The home is currently thought to be occupied by Zahi Salman, 50, and one of her daughters – both of whom were visible through the open door.

Three FBI agents went inside the house. Two female agents were the first to approach the home, shout FBI, and enter to and speak to the occupants. They left after an hour and a half without comment.

The arrival of the FBI in California is the latest twist in a dramatic day of developments, which include the revelation that Salman, 30, knew about her husband's plans but did not turn him in.

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Agents on the scene: Two women were the first to enter the house after shouting 'FBI'. The terrorist's mother-in-law and one of her daughters were thoguht to be at homr

Mother-in-law: Zahi Salman, a Palestinian-born American opened the door to a third agent. Her daughter has told the FBI she knew of her husband's plan in advance and 'tried to stop him'

Question: The three FBI agents spent an hour and a half at the home, where Zahi Salman, a widow, lives. At least one of her daughters was thought to be with her at the time

Questions: The FBI agents parked outside the suburban home in Rodeo, CA, to question the Salman family after Mateen's wife revealed she knew he was planning an attack and did not call 911

At home: Zahi Salman, 50, who let a woman believed to be a nurse into her family home before the FBI raid, earlier told Daily Mail Online the family are 'ok'

Suburban: The Salman family home is in Rodeo, in northern California, on a suburban street. Zahi Slamna has four daughters - one of whom, Noor, was married to Orlando gunman Omar Mateen

Brief visit: The agents left after an hour and a half. Federal prosecutors are convening a grand jury to consider charges against the shooter's wife

'Kept it secret': Noor Zahi Salman (left) has reportedly admitted to the FBI that she was aware of her husband Omar Mateen's plans to commit a massacre, and even helped him buy ammunition and scout locations

This morning, FBI sources told NBC and ABC that the mother-of-one had driven her husband on scouting missions to the Pulse nightclub as well as on a visit to Disney Springs accompanied by her three-year-old son.

But despite being present when Mateen purchased the guns used to mow down 49 people and injure a further 53 in the early hours of Sunday morning, she failed to inform the authorities – and could now face charges herself.

A grand jury is being convened by federal prosecutors, Fox News reported.

The family home in Rodeo, a small town 40 minutes north of San Francisco, was quiet this morning when Daily Mail Online arrived with the windows shuttered.

A woman, believed to be Zahi, came to the door when this website visited but refused to say anything beyond that the family are 'OK'.

She added: 'We are OK but we don't want to say anything. I am waiting for my daughter and to hear of her son. We will be OK.'

Shortly after the FBI departed, a neighbor Chuck Surman, 54, approached the house to leave a bunch of flowers on the mat.

Asked why, he said: 'I wanted to do something for her [Zahi]. You can't help what your kids do. I was shocked when I heard.'

Salman, a second-generation American with family ties to Palestine, grew up in Rodeo and many of her extended family still live in the area, including her uncles Bassam, Abdallah and Ossama.

The family is believed to have moved to the US in the 1970s from Ramallah, on the West Bank, and settled in California.

Her cousin Sana, 24, also lives close by but when approached by Daily Mail Online, said she did not know Mateen and had no further comment to make.

Salman is thought to be the eldest of four daughters, with other relations living in Ohio and Louisiana.

Her mother, Zahi, 50, still lives at the family home, which was left to her by her husband Ekbal, 56, following his death last year.

Neighbors describe a peaceful family who are quietly religious and have never caused trouble on the tranquil street on which they live.

First appearance after: Salman seen on Monday night arriving at her home to collect her belongings

Pictured: Noor Zali Salman in a family photo with her husband. A second-generation American, Salman was born into a well-to-do Palestinian family who emigrated to California from Ramallah, in the West Bank, in the 1970s

Also facing questions: Omar Mateen's father Seddique Mateen, who said he knew nothing about his daughter-in-law's alleged complicity

Glauber Franchi, 38, who runs a cleaning company and lives with his wife Jessie, 33, said: 'They have four daughters and they're all married but one.

'They're quiet - you don't see much any movement but they are nice.

He added: 'I worked for her once, cleaning her backyard. When I went there, she showed me the house and they have a lot of religious things in there.

'There are wall hangings that say "I love Allah" but she has always been nice and there's never been any problems or anything.'

Salman had been married to Orlando shooter Omar Mateen, 29, for at least three years and shared an apartment in Fort Pierce, Florida, with the killer and their three-year-old son.

She was Mateen's second wife and married him after his divorce from first wife Sitora Yusifiy, 26, of Boulder, Colorado.

Salman was seen for the first time after the massacre on Monday evening as she arrived at her apartment in Fort Pierce with police.

Officers escorted her from a car to the front door. WSVN footage showed her pulling the hood of a grey sweater over her eyes to hide her face.

After collecting belongings from the home she shared with Mateen and their three-year-old son she got back in the officers' car.

Daily Mail Online also visited Salman's father-in-law, Seddique Mateen, at his home in Port St Lucie.

He said he knew nothing about his daughter-in-law's alleged involvement in his son's terrorist plot.

'I don't know anything. I will wait till (law enforcement officials) tells me,' he told reporters at the front door of his four-bedroom custom-built home on busy Bayshore Boulevard in Port St, Lucie, Florida.

'I don't think she was involved.'

He also denied reports that his son, who died in the shoot-out with police at Pulse was gay — but then backed off when pressed further.

'I don't believe he was a — whatever you call it,' he said in response to a question as to whether the 29-year-old was a homosexual.

'I have to wait and to find out myself.

'There was nothing to suggest that he was gay,' added Mateen, who looked haggard and said he was feeling ill. When asked whether he ever spoke about homosexuality with his son, Mateen responded: 'We never had any discussions.

'But he was a 29-year-old adult and he wasn't living with me. Everybody has his own responsibilities.'

On Sunday evening, Uzbekistan-born Yusifiy told reporters that her marriage to Mateen had been an abusive one, with Mateen taking his fists to the 26-year-old for the smallest of misdemeanors.

'He was not a stable person,' she said. 'He beat me. He would just come home and start beating me because the laundry wasn't finished or something like that.'

Salman, however, appears to have enjoyed a longer marriage to Mateen and was included on a mortgage document in 2013.

Mateen, 29, of Port Lucie, Florida, became the deadliest mass shooter in US history in the early hours of Sunday morning after he stormed an Orlando gay club and opened fire on the revelers inside.

Forensic search: In Orlando, on the other side of the country, federal agents are still searching the Pulse nightclub in the wake of Omar Mateen's murderous ISIS-inspired rampage

LEST WE FORGET: THE 49 VICTIMS OF OMAR MATEEN THE 49 GUNNED DOWN BY ZAHI WERE: FIRST ROW (LEFT TO RIGHT) Edward Sotomayor Jr., 34; Stanley Almodovar III, 23; Luis Omar Ocasio-Capo, 20; Juan Ramon Guerroro, 22; Eric Ivan Ortiz-Rivera, 36; Peter O. Gonzalez-Cruz, 22; Luis S. Vielma, 22. SECOND ROW Kimberly Morris, 37; Eddie Jamoldroy Justice, 30; Darryl Roman Burt II, 29; Deonka Deidra Drayton, 32; Alejandro Barrios Martinez, 21; Anthony Luis Laureano Disla, 25; Jean Carlos Mendez Perez, 35. THIRD ROW Franky Jimmy Dejesus Velazquez, 50; Amanda Alvear, 25; Martin Benitez Torres, 33; Luis Daniel Wilson-Leon, 37; Mercedez Marisol Flores, 26; Xavier Emmanuel Serrano Rosado, 35; Gilberto Ramon Silva Menendez, 25. FOURTH ROW Simon Adrian Carrillo Fernandez, 31; Oscar A Aracena-Montero, 26; Enrique L. Rios Jr., 25; Miguel Angel Honorato, 30; Javier Jorge-Reyes, 40; Joel Rayon Paniagua, 32; Jason Benjamin Josaphat, 19. FIFTH ROW Cory James Connell, 21; Juan P. Rivera Velazquez, 37; Luis Daniel Conde, 39; Shane Evan Tomlinson, 33; Juan Chevez-Martinez, 25; Jerald Arthur Wright, 31; Leroy Valentin Fernandez, 25 SIXTH ROW Tevin Eugene Crosby, 25; Jonathan Antonio Camuy Vega, 24; Jean C. Nives Rodriguez, 27; ; Rodolfo Ayala-Ayala, 33; Brenda Lee Marquez McCool, 49; Yilmary Rodriguez Sulivan, 24; Christopher Andrew Leinonen, 32. SEVENTH ROW Angel L. Candelario-Padro, 28; Frank Hernandez, 27; Paul Terrell Henry, 41; Antonio Davon Brown, 29; Christopher Joseph Sanfeliz, 24; Akyra Monet Murray, 18; Geraldo A. Ortiz-Jimenez, 25. Advertisement

The shooter dialed 911 shortly before the attack to declare allegiance to the Islamic State terrorist group and died in a hail of gunfire while attempting to escape a police SWAT team three hours later.

The deadly rampage at the Pulse nightclub in Orlando claimed the lives of 49 innocent people - among them Eddie Justice, 30, whose panicked text messages to his mother Mina made headlines around the world.

Other victims of America's worst ever mass shooting included Edward Sotomayor Jr, 34, Kimberley Morris, 37, and Universal Studios employee Luis Vielma, 22.

The massacre, which also left 53 injured, has led to renewed calls for gun control with Democratic presidential hopeful Bernie Sanders telling reporters he hopes to see a total ban on assault weapons.

Meanwhile, it emerged that the FBI missed two chances to stop Mateen, who was interviewed after links to an American ISIS fighter were uncovered.

Mateen, who was born in New York and worked for British security company G4S, also allegedly cheered on the 9/11 terror attacks according to high school classmates - and would make plane noises on the school bus in a bid to upset them.

Glauber, who says he has been left troubled by his neighbor's connection to terror, added: 'It's such a small world - you don't even know your neighbors anymore. Everybody will be judging everybody now.'

HOW MATEEN SIZED UP TARGETS - WITH HIS WIFE'S ASSISTANCE WALT DISNEY WORLD Omar Mateen and his wife Noor Zahi Salman allegedly visited Walt Disney World in April. It has now emerged they may have gone more than once. Officers believe Mateen was looking at one park in particular: Downtown Disney. Downtown Disney is billed as an 'eclectic mix of unique boutiques, one-of-a-kind eateries and jaw-dropping entertainment that will have you wondering where the day went.' There is no bag check or metal detector to get in. The other four parks at Disney World - Magic Kingdom, Hollywood Studios, Animal Kingdom and Epcot - all have metal detectors. Walt Disney World has yet to comment on this report. PULSE Mateen had been spotted at Pulse multiple times by patrons, and would often sit in a corner drinking alone. Ty Smith told the Orlando Sentinel that he had seen Mateen at least a dozen times at the gay club, and that on occasion he 'would get so drunk he was loud and belligerent.' He also said that he did not talk much to Mateen but that he did tell him he had a wife and a son and would at times speak about his father. He was in the area for several days before the attack according to a source who spoke with USA Today, suggesting he had carefully selected his target. And now Salman has admitted she once drove Mateen to the club to check it out. Advertisement

Pictured: Inside the apartment terrorist Omar Mateen shared with wife and three-year-old son as FBI raids their home for evidence

Daily Mail Online obtained photographs inside the killer's apartment in Fort Pierce, where investigators did a sweep on Sunday.

The walls of the apartment are adorned with photos of Mateen's three-year-old son. Loads of toys including a Spiderman bicycle, toy trucks and Mickey Mouse posters can be seen throughout the two-bedroom home.

What looks like a ceremonial sword sits proudly by the TV set in the living room and workout equipment sits in a corner. Mateen was known to be obsessed with his physique and had taken steroids.

The master bedroom has red sheets on the bed and a bureau is adorned with balloons, photos and bottles of a woman's perfume.

Apartments in the building rent for between $600 and $1,000 at the property. Daily Mail Online learned exclusively that Mateen was earning $1,600 a month from his job at G4S Secure Solutions in Jupiter.

Star Wars bedding and posters adorn the walls of Mateen's son's bedroom along with baseball hats and a Ninja Turtle backpack

Pictures of Mateen's son adorn the walls and the refrigerator of the apartment in Fort Pierce. Boxes of cereals line the top of the fridge

Law enforcement officers surrounded the complex on Sunday, and even brought in bomb detonation equipment as they searched Mateen's apartment.

Mateen earned an associate's degree in criminal justice from Indian River State College in Fort Pierce, and expressed interest in joining the police force.

Instead, he worked as a security officer, a fact that comforted other members of the Islamic Center of Fort Pierce where he worshipped, Syed Shafeeq Rahman, the head of he mosque, said.

After spending most of the day searching Omar Mateen's Port St. Lucie home, cops and the FBI moved on to the custom-built four-bedroom home a couple of blocks of north on Bayshore Boulevard where his parents live.

Neighbor, Tony Schneider, a retired deputy sheriff told Daily Mail Online that Seddique and Shahla Mateen are 'the nicest people in the world.'

What looks like a ceremonial sword sits proudly by the TV set in the living room of Mateen's apartment

Mateen weights sit in a corner of the home. He was obsessed with his physique and even took steroids

'They are very Americanized, he said. 'Just very good neighbors. I have known them for six years and have never had any problems with them.

'My heart goes out to them — of course if they were involved they can rot in hell, but I otherwise I feel so sorry for them.'

Schneider said that Seddique — who he knows as Sid — can often be seen in his yard and walking up and down the street. He said he did not know his wife nearly as well.

'I believe he is in insurance, he has done well for himself and they have three daughters, all went to college, who I believe are in the medical field.