After spending months appealing for calm, Micheal Brown's family could not hide their anger last night when it was announced that the grand jury had decided not to charge Officer Darren Wilson.

Brown's mother, Lesley McSpadden, stood sobbing and screaming on top of a car with her husband and friends outside Ferguson police department.

She wore a button pinned to her chest that read 'Indict Now and a white hat with a photo of her son which called for 'Justice for Mike Brown.'

Scroll down for video

Brown's mother, Lesley McSpadden, stood sobbing and screaming on top of a car with her husband and friends outside Ferguson police department

When St. Louis County Prosecutor Robert McCulloch read out the decision she collapsed in grief and screamed 'This is wrong!'

Her devastation was clear as she threw her arms in frustration at the news. She wore a button pinned to her chest that read 'Indict Now and a white hat with a photo of her son which called for 'Justice for Mike Brown'

Although she wore sunglasses, tears ran down her face as she heard the decision

While St. Louis County Prosecutor Robert McCulloch was speaking during a televised statement, McSpadden began to shout out in frustration.

'Defend himself from what!' she yelled, when the prosecutor spoke of Officer Darren Wilson, reports the New York Times.

While St. Louis County Prosecutor Robert McCulloch was speaking during a televised statement, McSpadden began to shout out in frustration

The victim's stepfather (center) screamed 'Burn this b**** down' as he stood next to Brown's mother

Lesley McSpadden hugs Brown's stepfather who wore a 'I am Mike Brown shirt'

'They wrong!' she yelled, pointing toward the police station. 'You all know, you're all wrong!'

Although she wore sunglasses, her anger and devastation were clear as tears ran down her face.

'Everybody wants me to be calm. You know what them bullets did to my son!'

'They still don't care!' she screamed as she threw her arms in frustration. 'They never going to care!'

She then buried her face in her the chest of the victim's stepfather, Louis Head, who wore a t-shirt reading: 'I am Mike Brown.'

He turned around to the incensed crowd and screamed: 'Burn this b**** down'.

As the roaring crowd began to surge forward, the pair were both whisked away by supporters.

McSpadden had found out the news in a hotel room where she waited with her family and their attorney.

As the announcement time drew closer, McSpadden bowed her head and joined hands with her family, reports USA Today.

Shots fired: Michael Brown was shot several times by Officer Darren Wilson in the St Louis suburb on August 9, sparking months of protests

Michael Brown, Senior and Lesley McSpadden, parents of slain Michael Brown, Jr, have spent months campaigning for justice and appealing or protesters to remain clam

St. Louis County Prosecutor Robert McCulloch announces the grand jury's decision not to indict Ferguson police officer Darren Wilson

'I know God will prevail. We know it's in God's hands,' she said as she wept.

'God will have justice no matter what,' said attorney Benjamin Crump.

It was Crump who took the 7:50p.m. ET call from Prosecuting Attorney Robert McCulloch to relay the grand jury's decision.

As soon as she heard McSpadden began to scream and cry.

He said McCulloch said he was willing to meet with the family to which McSpadden screamed: 'I do want to meet with him right now. What do you mean no indictment?!'

Sobbing she ran from the room, with her husband chasing after her.

Crump said the family still has hope that a federal civil rights investigation will hold the officer and the police department accountable.

Protestors in the parking lot of a burning auto parts store in Ferguson following the grand jury decision

Police said that up to 25 structures were razed by rioters in Ferguson. There were 80 arrests in the suburb and in the city of St Louis

Ferguson has been struggling to return to normal after Brown, an 18-year-old black man, was killed by Darren Wilson, a white Ferguson police officer

A protester stands in the street after being treated for tear gas exposure

Heavily armed police arrive at a business in Dellwood, a neighbouring suburb to Ferguson, as cars in a parking lot next to the building burn

A police officer aims his non-lethal shotgun at protestors in Ferguson

A protester burns an American flag on Highway 580 during a demonstration

Raid: Looters smashed their way into a local Ferguson business and helped themselves to products that it sold

Anger: Demonstrators, many with their faces covered by scarves, try to push over a police car in Ferguson

Rampage: Demonstrators brazenly loot a local store in Ferguson following the grand jury decision with armfuls of goods being carried off

They will also consider filing a civil wrongful death lawsuit, he said.

'The family felt the whole process was completely unfair to them,' he said. 'Police officers are not held accountable when they kill young people of color.'

The family released a statement immediately after the news via their lawyers which read: 'We are profoundly disappointed that the killer of our child will not face the consequence of his actions.

'While we understand that many others share our pain, we ask that you channel your frustration in ways that will make a positive change.

Fearsome: A demonstrator flashes a peace sign before a burning police car during clashes between police and protesters over the decision in the shooting death of 18-year-old Brown

Violence: The Brown family called for peaceful protests in their official statement, but the crowds quickly turned violent and police officers in riot gear shot tear gas into the masses of demonstrators. Above, A protester stands with his hands on his head as tear gas fills a Ferguson street Monday night

Police search for looters at a burning Walgreens store which was set on fire by protestors

Disruption: Police confront protestors in Ferguson using armored vehicles and riot shields

Stand-off: Witnesses on the ground in Ferguson say police have been shooting bean bag rounds and stun grenades into the crowd along with tear gas. Above, police officers confront protesters following the unpopular decision not to indict Officer Wilson was announced Monday night

Smash: Protesters vandalize a police car outside the Ferguson Police Department in Ferguson, Missouri, after a grand jury returned no indictment in the shooting of Michael Brown

Looting: Protesters wearing gas masks used the chaos on the streets of Ferguson as an opportunity to steal from a local store

Stay calm: President Obama held a press conference shortly after the grand jury's decision was announced, asking protesters to demonstrate peacefully in the streets of Ferguson. The president's directives were not followed by the demonstrators in Missouri

'We need to work together to fix the system that allowed this to happen.

'Join with us in our campaign to ensure that every police officer working the streets in this country wears a body camera.

'We respectfully ask that you please keep your protests peaceful. Answering violence with violence is not the appropriate reaction.

'Let's not just make noise, let's make a difference.'

Ahead of the grand jury decision, Michael Brown's father released a statement Monday afternoon, which read: 'After the grand jury's decision, we are asking for 4 1/2 minutes of silence to remember why we lift our voices.

'We are not here to be violent. We are here in memory of our son.

'We are here for protection of all children. We are here to support justice and equality for all people.