MIAMI -- Fulton Walker, the first player to score on a kickoff return in a Super Bowl, has died at the age of 58 in his hometown of Martinsburg, West Virginia.The Miami Dolphins said Walker died Wednesday of an apparent heart attack.Walker scored for the Dolphins on a 98-yard kickoff return in Super Bowl XVII in 1983. His touchdown put Miami ahead, but the Washington Redskins rallied to win 27-17. Walkers return is still tied for third-longest in Super Bowl history.He played in the NFL from 1981 to 1986 for the Dolphins and Los Angeles Raiders. He led the NFL with a kickoff return average of 26.7 yards in 1983, and with 692 yards in punt returns in 1985.Walker played in college at West Virginia University.Mike Webster Jersey . The showiest items on Calgarys lot were forwards Mike Cammalleri and Lee Stempniak. Both will be unrestricted free agents this summer. Joe Gilliam Jersey . Two pressure cooker bombs exploded near the finish line of the April 15 race in an area packed with fans cheering the passing runners. Three people were killed and more than 260 injured, including at least 16 who lost limbs. http://www.steelerspronfl.com/Youth-Diontae-Johnson-Elite-Jersey/ . Spiller left Week 3s 27-20 loss to the New York Jets with a thigh injury, but fully practiced with the team all week and expects to be ready to go on Sunday. Benny Snell Jr. Steelers Jersey . That gave fans outside Joe Louis Arena another chance to ask for autographs from the 19-year-old whose stardom in the NHL has arrived earlier than most expected. Franco Harris Jersey . Brett Kulak and Jackson Houck of the Vancouver Giants were each charged with assault causing bodily harm on Aug. 18, according to the B.C. court services.RIO DE JANEIRO -- Helicopters were up at daybreak spotting rubbish flows at the Olympic sailing venue, with boats below collecting the debris.Dozens of barricades dammed up streams that flushed garbage into the bay. They caught waterlogged sofas, Styrofoam cups and deflated soccer balls.A sewer pipe at Marina da Gloria stopped raw sewage from being pumped into the harbor where Olympic boats were moored.Rio de Janeiros water remains filthy as the Olympics wrap up, even after a final push to clean up the water for the worlds largest sporting event. Fans were reminded by the stench from a lagoon contaminated with raw sewage that abuts the Olympic Park.Long after the athletes and fans leave, the city will continue to struggle with water teeming with bacteria and viruses.Rio organizers promised in their 2009 bid document that the Olympics would drive a cleanup of Rios waters, pledging to treat 80 percent of the waste. Estimates vary, but most suggest the area is still treating less than 50 percent of its sewage.For two weeks, Olympic athletes competing in the water largely avoided falling ill by building immunity to pathogens, using preventive measures, or by trying to limit contact with the water in water-based sports.An independent study by The Associated Press conducted at sites around the city over more than a year -- including the sailing venue in Guanabara Bay and the rowing venue in Rodrigo de Freitas lagoon -- showed dangerously high levels of contamination.In over 16 months of testing leading up to the games, there was no decline in the very high bacterial and viral levels in the water, underscoring that the cosmetic measures authorities took to make venues appear cleaner ultimately didnt reduce the risks.The contamination is always there, and the sad thing is that its not going away any time soon, said Dr. Fernando Spilki, the Brazilian virologist and coordinator of the molecular microbiology laboratory at Feevale University in southern Brazil, who was commissioned by AP to conduct the water tests.Falling ill depends on a variety of factors.The majority get infected, a few get sick and adults normally (have built up) some immunity, Spilki added.It is difficult to link symptoms to Rios water because many gastrointestinal illnesses can be blamed on things like simple travelers diarrhea, and some symptoms may not show up immediately.That could make it hard for anyone looking to blame the water for illnesses that emerge when they go home. Dr. Nebojsa Nikolic, medical director of World Sailing, attempted to trrack sailing illness during a test event a year ago in Rio.ddddddddddddHe concluded that the frequency of illness was not unusual, but also said the exact causes could not be determined without human stool samples of sailors in dozens of countries.Nikolic said hell conduct a follow-up study of the Olympics.From what we know there were only a few cases scattered across different teams without influencing the sailing performance, Nikolic said in an email.Sailors and rowers said the water appeared cleaner than it was a year ago, the result of numerous stop-gap measures employed by the Brazilian government. Most of it focused on corralling floating trash, but officials also deployed bioremediation efforts during test events, but declined to specify exactly what it entailed.We had taken precautions just in case, because the water quality last year and the year before probably wasnt that good, said Lisa Carrington of New Zealand, who won gold in womens 200-meter singles. But I feel that the water here today, this week, is really good.Precautions taken by athletes across polluted venues included keeping water bottles in plastic bags, bleaching oars or paddles, using hand sanitizers, and washing clothes immediately after practicing or racing.Brazilian canoeist Isaquias Queiroz said hes trained in Rio for two years and noticed the water is much cleaner.I even wondered if they had some kind of chemical product in it, he said.Andy Hunt, the CEO of the governing body World Sailing, said Belgian Evi Van Acker was the only sailor he knew of who fell ill during the games. Her coach said it was due to an intestinal infection she contracted while training in Rio last month.World Sailing gave extensive hygiene guidance beginning a year ago after sailors fell ill in Rio at a test event.Everyone has been very careful in using hand hygiene, washing down clothing, boats and so on, Hunt said.Dorian van Rijsselberghe of the Netherlands, who won gold in mens windsurfing, criticized Brazilians for not keeping their promise to thoroughly clean the bay.Not everything is OK, Van Rijsselberghe said. Thats the thing. Brazil made a promise a couple of years ago and they couldnt keep their promise.---AP reporters Karl Ritter, Bernie Wilson, and Peter Prengaman contributed to this report.---Stephen Wade on Twitter: http://twitter.com/StephenWadeAP .His work can be found at http://bigstory.ap.org/content/stephen-wade ' ' '