RIO DE JANEIRO -- Human Rights Watch said Thursday that a pattern of covering up police killings has thwarted efforts to curb violence in Rio de Janeiros slums ahead of the Summer Olympic Games in Brazil.Many of the people killed by police in recent years were unarmed, in custody or trying to flee, according to the 109-page report. Authorities have said that in most cases, the police had come under attack, but prosecutors told the rights group that in the majority of the cases there was no confrontation.The city is gearing up for the Olympic Games that begin on Aug. 5, with security as one of the main concerns. Rights groups have condemned the increasing use of excessive force in slums and outlying areas. Human Rights Watch said the lack of investigation and prosecution of officers to some extent unraveled a security overhaul that had shown progress.You cant be an effective police officer in a community if people distrust you, fear you, they even hate you, said Daniel Wilkinson, managing director of the Americas division at the organization. Its compromising any effort to improve public security and fulfill this promise for the Olympics.Rio police have had a long track record of carrying out extrajudicial killings with more than 8,000 deaths by law enforcement since 2006. However, Wilkinson said police killings dropped from 2007 to 2013 after an effort to reduce crime in violent slums through the use of a new community police force.But police killings have been rising in the past three years in Rio de Janeiro state, with 645 people killed in officer-involved shootings in 2015, compared to 416 in 2013.They failed to deal with this basic problem, which is that there are a lot of cases of police executing people, Wilkinson said. Theres almost zero accountability. These cases arent investigated, they are not prosecuted and people can get away with them. It was no surprise that after initial progress, the problem of police killings started to bounce back.The rate of 3.9 police killings per 100,000 people in 2015 is almost five times that of South Africas and nearly 10 times that of the U.S.The New York-based rights group interviewed 34 current and former police officers who detailed a culture of combat that rewards them for killing instead of arresting drug-trafficking suspects. They said they covered up killings by planting guns on victims, or removing them from crime scenes to deliver dead people at hospitals, destroying evidence in the process.The organization said it studied 64 cases and found that forensic evidence in half of them was inconsistent with officials accounts. Autopsies in 20 cases showed the dead had been shot at close range, something not typical of shootouts. The report also showed that Rio police killed five people for each person they injured from 2013 to 2015, a number the group says is the opposite of what one would expect.The investigative police are usually tasked with investigating police killings, but detectives often do not visit the scenes of the deaths or even interview all of the officers involved, the report said, adding that prosecutors filed charges in only 15 of the 3,441 police killings between 2010 and 2015.Wilkinson said some recent changes in the justice system bear some promise, such as turning officer-involved killings over to the states homicide division instead of neighborhood precincts. The group also recommends increasing the number of prosecutors who investigate only police abuse and improving internal investigations within the police.Rio de Janeiro state security officials did not respond to a request for comment. Discount Adidas NHL Jerseys . Kyle Denbrook, a soccer player from Saint Marys University, took the CIS male athlete of the week honour. Stanley, a fourth-year business administration student from Charlottetown, scored both goals in a 2-0 win over Dalhousie on Friday and tallied again in a 1-0 win over Saint Marys on Sunday. Adidas NHL Jerseys From China . Tuesdays surgery at Atlantas Piedmont Hospital was performed by Dr. Xavier Duralde and Hawks team physician Dr. Michael Bernot. http://www.nhljerseys.us/ . He was followed closely by David Clarkson, donning red, seconds later. Clarksons actions one night earlier, leaping off the bench in defence of Kessel during a pre-season game against the Buffalo Sabres, will cost him the first 10 games of the regular season. Authentic Adidas NHL Jerseys . Klitschkos management company says the bout will be the Ukrainian fighters 25th world championship fight. The 1.83-meter (6-foot) Leapai defeated the previously unbeaten Denis Boytsov in November to become the WBOs mandatory challenger. Wholesale Adidas NHL Jerseys . -- Tony Stewart is 20 pounds lighter and has a titanium rod in his surgically repaired right leg. The Western Bulldogs have seen enough on the training track for in-doubt trio Matt Suckling, Dale Morris and Lin Jong to be considered for the AFL grand final.But Jordan Roughead, who suffered bleeding in the eye in last Saturdays preliminary final, could yet need medical clearance to take his place in the Bulldogs line-up.Roughead is likely to be named in the clubs 22 to face Sydney, but assistant coach Joel Corey said consideration will be given to expert opinion before he lines up.Hes got to check off with the eye specialist tomorrow but he moved pretty well out there, Corey said on Thursday.The welfare of our players is really important to us and blood in the eye is not a minor thing. It could have complications.What (the doctor) says will certainly hold a lot of weight.The Bulldogs hosted a rapturous open training session at Whitten Oval on Thursday morning, which was attended by up to 10,000 Bulldogs fans.Injured captain Bob Murphy was able to take his part in minor drills, delighting the clubs success-starved fans.Bulldogs coaches will bunker down on Thursday afternoon for their most agonising team selection meeting in 55 years.Top of the agenda will be whether Suckling (achilles) and Jong (shoulder) return to the side despite missing the preliminary final success over Greater Western Sydney.Jong showed his fitness with his best afield sshowing in Footscrays VFL grand final win.ddddddddddddLin performed at a really high level on Sunday. Hes done a lot to come back from injury in a short time. Hes put his foot forward, Corey said.Suckling and Morris, who has a mystery complaint, barely trained on Thursday but Corey said the pair enjoyed strong hit-outs earlier in the week.Weve seen enough, he said.Corey said the lighter training efforts on Thursday meant nothing.(Suckling) trained heavily on Tuesday and has a different program for a few weeks now so I wouldnt read much into that, he said.Dale trained Wednesday and Corey reported he trained well and feels fine.Corey is no stranger to grand final week, playing in four during a decorated career with Geelong.But he said he was taken aback by the scenes at Whitten Oval on Thursday.I cant say Ive been involved in such a great turnout for a training session, he said.The supporters really feel like they belong to the football club ... and they are a real part.Corey rubbished the suggestion that the young playing group was too inexperienced to compete on the sports biggest stage.This group is unique ... but theyre as focused as any group that Ive been involved with, he said.Theyre looking forward to Saturday. 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