Conservative commentators in the US have mocked Michael Brown’s father as they awaited a jury’s decision on whether to indict a white police officer for the fatal shooting of the teenager.

The shooting of the black unarmed teenager ignited weeks of unrest in Ferguson, Missouri, and sparked protests across the US.

The grand jury eventually chose not to bring charges against Darren Wilson, the announcement being given on Monday evening, local time.

Earlier, right-wing media had focused on an alleged brawl involving his family members over the sale of memorial T-shirts in recent days.

Mr Brown’s father, Michael Brown senior, was pictured wearing one as he made an emotional plea for calm on Saturday, knocking on doors and giving out Thanksgiving turkeys as the suburb braced itself for more unrest.

But the Tea Party News Network (TPNN), a conservative website calling itself an “antidote to mainstream media bias”, mocked a spelling mistake on his T-shirt.

With a picture of his 18-year-old son, it reads “gone to soon”, rather than “gone too soon”.

The TPNN article said: “Many wondered who has been steering their actions, movements, and connections, and this simple t-shirt worn by Mike Brown, Sr. will heighten that pondered question.

“Gone to Soon? Where is Soon?

“Perhaps their handlers should tell them that they’d stand a better chance of selling t-shirts if they were grammatically correct.”

Comments underneath the article included racial slurs and blamed his parents for his death.

“Wish the whole family was gone,” one comment said.

In pictures: Michael Brown shooting Show all 32 1 /32 In pictures: Michael Brown shooting In pictures: Michael Brown shooting Michael Brown shooting Riot police stand guard as demonstrators protest the shooting death of teenager Michael Brown in Ferguson In pictures: Michael Brown shooting Michael Brown shooting Police stand watch as demonstrators protest the shooting death of teenager Michael Brown in Ferguson In pictures: Michael Brown shooting Michael Brown shooting A police officer patrols a business district in Ferguson In pictures: Michael Brown shooting Michael Brown shooting Police surround and detain two people in a car in Ferguson In pictures: Michael Brown shooting Michael Brown shooting A protester throws back a smoke bomb while clashing with police in Ferguson In pictures: Michael Brown shooting Michael Brown shooting A protester is engulfed in smoke as he throws back a smoke bomb while clashing with police in Ferguson In pictures: Michael Brown shooting Michael Brown shooting A demonstrator, protesting the shooting death of teenager Michael Brown, stands his ground as police fire tear gas in Ferguson In pictures: Michael Brown shooting Michael Brown shooting A demonstrator throws back a tear gas container after tactical officers worked to break up a group of bystanders on Chambers Road and West Florissant in St. Louis In pictures: Michael Brown shooting Michael Brown shooting A member of the St. Louis County Police Department points his weapon in the direction of a group of protesters in Ferguson In pictures: Michael Brown shooting Michael Brown shooting Michael Brown’s parents, Michael Brown Sr, left, and Lesley McSpadden, right, stand next to the Rev Al Sharpton in St Louis AP In pictures: Michael Brown shooting Michael Brown shooting Demonstrators protest the killing of teenager Michael Brown outside Greater St. Marks Family Church while Browns family along with civil rights leader Rev. Al Sharpton and a capacity crowd of guests met inside to discuss the killing in St Louis, Missouri In pictures: Michael Brown shooting Michael Brown shooting Demonstrators protest the killing of teenager Michael Brown in Ferguson In pictures: Michael Brown shooting Michael Brown shooting Police take up position to control demonstrators who were protesting the killing of teenager Michael Brown in Ferguson, Missouri In pictures: Michael Brown shooting Michael Brown shooting Police detain a man in Ferguson, Missouri In pictures: Michael Brown shooting Michael Brown shooting Demonstrators march in the street while protesting the shooting death of black teenager Michael Brown in Ferguson, Missouri In pictures: Michael Brown shooting Michael Brown shooting Police officers keep watch while demonstrators protest the death of black teenager Michael Brown in Ferguson, Missouri In pictures: Michael Brown shooting Michael Brown shooting Demonstrators protest the killing of teenager Michael Brown in Clayton, Missouri In pictures: Michael Brown shooting Michael Brown shooting Anthony Shahid leads a peaceful protest over the killing of teenager Michael Brown in Clayton, Missouri In pictures: Michael Brown shooting Michael Brown shooting Lesley McSpadden (L), the mother of slain teenager Michael Brown joins a capacity crowd of guests at Greater St. Marks Family Church to discuss the killing of her son and the civil unrest resulting from his death in St Louis, Missouri In pictures: Michael Brown shooting Michael Brown shooting Lesley McSpadden, the mother of 18-year-old Michael Brown, wipes away tears as Brown's father, Michael Brown Sr., holds up a family picture of himself, his son, top left, and a young child during a news conference in Jennings In pictures: Michael Brown shooting Michael Brown shooting Police with dogs in St Louis after vandalism started St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting A man leaving a looted shop in St Louis following a vigil for Michael Brown on Sunday St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting Protesters bang on the side of a police car Sunday evening, St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting Meghan O'Donnell, 29, from St Louis, prays at the spot where Michael Brown was killed on Sunday evening St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting A large crowd gathers at the candlelight vigil on Sunday evening St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting Protesters raise their hands in the 'don't shoot me' stance after being approached by police officers on Sunday St Louis Post-Dispatch/AP In pictures: Michael Brown shooting Michael Brown shooting Lesley McSpadden, center, drops rose petals on the blood stains from her son AP Photo/St. Louis Post-Dispatch, Huy Mach In pictures: Michael Brown shooting Michael Brown shooting Lesley McSpadden, left, is comforted by her husband, Louis Head, after her son, was shot AP Photo/St. Louis Post-Dispatch, Huy Mach In pictures: Michael Brown shooting Michael Brown shooting Louis Head, stepfather to Michael Brown, holds a sign AP Photo/St. Louis Post-Dispatch, Huy Mach In pictures: Michael Brown shooting Michael Brown shooting Ferguson police officers try to calm down a crowd near the scene of Michael Brown's death AP Photo/St. Louis Post-Dispatch, Huy Mach In pictures: Michael Brown shooting Michael Brown shooting A crowd stages a protest AP Photo/St. Louis Post-Dispatch, David Carson In pictures: Michael Brown shooting Michael Brown shooting Police officers stand near a crowd that is gathering AP Photo/St. Louis Post-Dispatch, Huy Mach

Mr Brown’s death has continued to dominate headlines in the US for three months since the shooting, sparking debates over the treatment of young black men by police.