SANTA CLARA, Calif. - The Santa Clara County district attorneys office declined to file charges against San Francisco 49ers defensive lineman Ray McDonald in a domestic violence investigation stemming from his Aug. 31 arrest.Prosecutors said in a release Monday that they were unable to charge McDonald because of conflicting versions of what happened, a lack of verifiable eyewitnesses and a lack of co-operation by the alleged victim, McDonalds fiancee.All domestic violence complaints deserve our concern, sensitivity and careful review, District Attorney Jeff Rosen said in the release. After our thorough review of all the facts, we do not have evidence sufficient to convince a jury beyond a reasonable doubt that Mr. McDonald committed a crime against his fiancee.The DAs statement said no one was left with significant injuries.McDonald has played all season despite outside pressure on the 49ers to bench him. He has 24 tackles, 15 of those solo, while starting all nine games for the 49ers (5-4).I appreciate the seriousness of the situation and I understand and respect that law enforcement had a job to do, which is why I co-operated fully with their investigation from beginning to end, McDonald said in a statement. I am relieved that the DAs office has rightfully decided not to file charges. I want to thank everyone who was supportive during this difficult time.The arrest came only days after NFL Commissioner Roger Goodell announced stiffer penalties for players accused of domestic violence, including a six-week suspension for a first offence and at least a year for a second. That move followed scrutiny over former Baltimore Ravens running back Ray Rices two-game penalty stemming from his arrest on an assault charge in February.The issue of domestic violence is important to us, as it is throughout society, the 49ers said in a statement Monday. We have taken this allegation seriously, just as we have taken the principles of due process seriously. We have said from the beginning that we will consider the information available, allow the facts to lead to our decisions and respect the judicial process. Based on the information available to us and the District Attorneys decision not to file charges, there will be no change in Rays status with the team.According to the DAs office, the investigation determined that McDonalds fiancee, who was identified only as Jane Doe in the statement, struck McDonald during an argument at his home during his birthday party and he then tried to restrain her.The two scuffled and McDonald forcibly attempted to remove her from the home, the statement said.McDonald called a San Jose police officer, saying he needed to get a female out of his house, the statement said. The fiancee subsequently called 911 and that led to McDonalds arrest.According to a memo prosecutors sent to Rosen, both McDonald and his fiancee said she struck him first. The memo says her injuries were consistent with restraint and an ensuing scuffle, not an attack.McDonald and his pregnant fiancee got into the fight after a woman attending the party told her some women were getting too friendly with McDonald. McDonalds fiancee, who was sleeping upstairs, came down and confronted him, according to the prosecutors memo.She asked a woman talking to him to step outside, according to the memo, and the two got into a fight. McDonald grabbed her arms to restrain her, according to the memo, and at one point grabbed her neck, as he tried to remove her from the house. Both times he left visible injuries, according to the memo.Following the arrest, 49ers CEO Jed York, general manager Trent Baalke and coach Jim Harbaugh repeatedly said they have zero tolerance for domestic violence, but rather than bench McDonald they agreed to let due process play out before making a decision about his future with the team. Harbaugh said he wouldnt allow any player found guilty of domestic violence to be on his team.He also said at the time that public pressure wouldnt affect how the 49ers handled McDonalds situation. An eight-year NFL veteran, McDonald has been a key member of one of the NFLs fiercest front seven units.Harbaugh took his player at his word.As Ive said from the very beginning, I was never there to stand up here and say what did or didnt happen, Harbaugh said Monday. The stance on domestic violence, that principle of being completely against it and also the principle for being for due process, and the respect of the judicial system, legal process, and that these are peoples lives, let the facts and the information lead to the decisions that we would make as an organization and that ultimately the authorities would make. They had a process, they had an investigative process that now seems to be concluded.___Associated Press Writer Sudhin Thanawala contributed to this report.___AP NFL websites: www.pro32.ap.org and www.twitter.com/AP_NFLWillson Contreras Cubs Jersey . -- Aaron Rodgers looked fine on the practice field Thursday. Joe Maddon Cubs Jersey .Y. - Carey Price had an early feeling that one goal might be enough to settle the latest matchup between his Montreal Canadiens and longtime Original Six foe, the New York Rangers. http://www.cubsauthentic.com/cubs-mark-grace-jersey/. 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