HARVEY, La. -- The Louisiana man who fatally shot ex-NFL player Joe McKnight during a road rage dispute was jailed on a manslaughter charge as a sheriff angrily defended the investigation Tuesday, saying authorities strategically waited for days to make the arrest because they needed to find independent witnesses.Ronald Gasser, 54, was initially questioned after the shooting last Thursday but he was released without being charged, drawing heated criticism from protesters who said race played a role in the investigation. Gasser, who is white, was arrested late Monday. McKnight was black.Jefferson Parish Sheriff Newell Normand pounded on a podium during a news conference explaining the investigation.This isnt about race. Not a single witness has said ... one racial slur was uttered, the sheriff said.The case comes at a time of intense scrutiny in the African-American community about the shootings of black men, in particular by police. While this case doesnt involve a police shooting, it has flared temperatures and drawn protests at the sheriffs department.Its not clear whether Gasser has an attorney. Attempts to reach Gassers family were unsuccessful Tuesday. McKnights grandmother, Barbara Lundy Franklin, did not want to talk about the arrest, except to say: God is going to bring us justice and god is going bring us peace.The sheriff said the dispute between the men started on a bridge and proceeded into a New Orleans suburb, with both men driving erratically and yelling at each other. Eventually, the cars came to a stop and McKnight confronted Gasser, who was still seated in his car, the sheriff said. Gasser pulled out a gun and shot McKnight three times, killing him. When deputies arrived, the sheriff said Gasser handed them his gun and said he shot McKnight, 28.The sheriff said McKnight had a gun in his vehicle but no evidence suggested he insinuated anything about it. It was his stepfathers gun, and his stepfathers vehicle, the sheriff said.During the news conference, the sheriff read aloud some of the derogatory remarks about the investigation, including racially charged comments.We have sometimes unrealistic expectations of how these things work ... you dont just run out and start slapping cuffs on people, Normand said.He noted that on Thursday, Gasser gave authorities a statement that included him being fearful and defending himself, saying that McKnight had made threatening comments. On Thursday evening, authorities had only been able to interview six witnesses, none of whom had seen the shooting. One person they talked to lied to authorities about what happened, the sheriff said.Normand said had an arrest been made Thursday, he was certain people would be afraid to come forward. Instead, authorities found more than 250 people they wanted to talk to by identifying license plates in the area at the time, and conducted more than 160 interviews. The sheriff said several witnesses made comments contradicting Gassers statements and were the key to making the arrest.He also pointed out that Gasser didnt ask for an attorney but instead sat with authorities for over ten hours of interviews in the days after the shooting and gave permission for them to search his home.Normand also pushed back against questions about whether he understood the fear that a shooting like this had brought about among some in the black community.Lets not try to make this out to be something that it is not. What we had were two adult males engaged in unacceptable behavior that did not understand how to deal with conflict resolution, he said.The sheriff did not want to go into details about why he felt Gasser should be arrested even though the state has a version of the Stand Your Ground law.Louisianas law holds that people dont have a duty to retreat and can meet force with force if they reasonably believe that using deadly force is necessary. Law experts say its not a blanket excuse.When you use lethal force, its got to be proportional, said Ken Levy, an associate professor who teaches criminal law at LSU Law Center. And the only way its proportional is if McKnight was threatening serious bodily injury or death.McKnight played three seasons for the New York Jets and one with the Kansas City Chiefs.The Jets held a moment of silence Monday night before their game against the Indianapolis Colts at MetLife Stadium to honor the former running back. He most recently played for the Saskatchewan Roughriders of the Canadian Football League.McKnights death was eerily similar to that of former New Orleans Saints player Will Smith, who was killed last April in a shooting sparked by a traffic altercation. Cardell Hayes is on trial and charged with second-degree murder.--Fuller reported from New Orleans.--This story corrects the first quote from saying not a single racial slur was uttered to not one racial slur. John Wensink Jersey . 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NEW YORK -- On a dreary, rainy Manhattan night, a huge, happy roar arose in a crowd of chess fans from around the world.Two-time world chess champion, Magnus Carlsen, had just reached for a final, victorious move on Wednesday that crowned him a champ for the third time.He marked his 26th birthday by beating Russian 26-year-old grandmaster Sergey Karjakin with bold, aggressive moves in a series of tie-breakers capping three weeks of the World Chess Championship that was tied after 12 games; 10 draws and one win each.Carlsen used a queen sacrifice to checkmate his opponent.The setting was a refurbished New York City building overlooking the Brooklyn Bridge that was once the citys fish market.On this night, it became a glittering gathering of hundreds of fans -- adults and children -- from Norway, Russia, the United States and elsewhere. They were riveted as the two grandmasters leaned into the tense game, barely moving, in total silence and deep in thought.Fans paid $100 to enter, feasting on snacks and drinks as they kept their eyes glued to flat-screens that beamed close-ups of the chessboard in an inner chamber. A panel of soundproof glass shielded the players from onlookers, who could see in but whom the players could not see.Hungarian grandmaster Judit Polgar said the four lightning-quick games played on Wednesday -- plus even faster ones that was not needed -- were like Russian roulette.Today, the faster games are a great show even for people who dont know the game, said Polgar, considered the greatest female player ever.On Wednesday, the required mental strategies also played out on chessboards scattered around the spectator lounge. People hovered over them, trying out various combinations of pieces, mirroring the masters.Magnus is my hero because he takess risks, hes really exciting, said Pippa Millstone, a Manhattan 9-year-old who came to watch the tournament for her fourth time.ddddddddddddThe game is pretty even now, but I feel like Magnus is going to start attacking really soon, she said in the middle of the third of the four so-called rapid games, each about a half-hour long, played as tie-breakers.Carlsen and Karjakin reached a draw in two, and the Norwegian won two for the championship.At crucial moments, spectators hushed, waiting to see what the next move would be. One whispered, no, no when Karjakins choice seemed halting, or on the defensive.Even the winner missed a chance in one game, drawing groans and a few happy shrieks, depending on loyalties.Organizers said about 6 million people around the world followed the last games -- sort of like sudden death play in football.Most fans were in homes and clubs across the globe. Some spent $15 for a pay-per-view live transmission, others to watch via high-tech goggles in 3-D virtual reality or by tracking moves on various free websites.The prize was $1.1 million divided between the two players, with the winner getting 60 percent.The New York championship did not escape the shadow of East-West rivalry dating to the Cold War days when American Bobby Fischer beat Russian defender Boris Spassky in 1972.This time, a key figure in chess was absent in New York: Kirsan Ilyumzhinov, a Russian multimillionaire and longtime president of the governing World Chess Federation who was accused by the U.S. government of collaborating with the Syrian regime.---This story has been corrected to show the first name is Bobby Fischer, not Garry Fischer. ' ' '