CNN's Suzanne Presto reports this is due to the lack of evidence against Sharper:
"Police in Miami Beach, Florida, said Thursday no charges will be filed against retired NFL star Darren Sharper after a four-month sexual assault investigation.
"A police spokeswoman, Vivian Thayer, said the case was closed, but could be re-opened if new evidence emerges.
"Thayer said an assistant state attorney decided to shutter the investigation because there was no physical evidence, no witnesses and the alleged victim made conflicting statements about the sexual encounter.
"Sharper, 38, faces rape charges in Arizona and California and a warrant for his arrest was issued in Louisiana. He also is under investigation in Nevada.
"He has pleaded not guilty to assaults in California, where he has been jailed in Los Angeles since February after turning himself in. His next court appearance is scheduled for Friday.
"Sharper's attorney's have said that he had consensual sex with women."
"In the Arizona case, they accuse a detective of giving misleading testimony in court last month that helped keep Sharper behind bars.
"A grand jury there indicted Sharper in March, charging him with drugging and raping two women last November. The Arizona charges didn't provide for bail, a stipulation cited by a Los Angeles judge when she ruled Sharper should remain locked up there indefinitely.
"Sharper's attorneys argued in a hearing in Tempe last month that the evidence wasn't strong enough in that case to deny him bail. A judge disagreed after hearing testimony from Det. Kevin Mace, a witness for the prosecution.
"Sharpers' attorney, Skip Donau, said no sperm was found on any of the alleged victims in Arizona. But Arizona prosecutor Yigael Cohen countered that with testimony from Mace about Sharper having had a vasectomy, which could explain the lack of sperm.
"Mace said he learned of the vasectomy from Los Angeles police and victim A, the other alleged rape victim in Arizona who had a previous sexual relationship with Sharper.
"Law enforcement authorities allege a similar pattern with Sharper: They say he partied with his victims, then raped them while they slept after he spiked their drinks with a sleep aid."
On the other hand, The New Orleans Times-Picayune's Helen Freund reported on March 7 that Sharper and his associate Erik Nunez, a waiter, were both issued arrest warrants by a Louisiana judge on two counts of aggravated rape.
"Darren Sharper's associate Erik Nunez has linked by DNA evidence to at least one of two women Nunez is accused of raping at Sharper's New Orleans apartment, prosecutors said Friday.
"The revelation came at a hearing in which a magistrate judge set a $400,000 bond for Nunez, a self-identified NFL promoter who has been working as a waiter at a New Orleans steakhouse.
"Nunez has been jailed since last Friday (Feb. 28) after magistrate judge Harry Cantrell signed an arrest warrant for both him and Sharper, a former Saints star safety, on two counts of aggravated rape.
"Two women have told police Sharper and Nunez sexually assaulted them in the early hours of Sept. 23.
"The two women in the New Orleans cases told police they each awoke 'disoriented' from a 'stupor' in Sharper's apartment and believed the ex-Saint was having sex with them, according to an application for an arrest warrant released by the New Orleans Police Department this week.
"Each woman reported that Sharper was 'completely nude on top of her.'
"The document also claims that Nunez and Sharper admitted to others that they had both had sex with two passed-out women 'without their knowlege or permission.'"
The 38-year-old Sharper is a five-time Pro Bowler who played 14 seasons in the NFL for the Green Bay Packers, Minnesota Vikings and Saints. He amassed 734 tackles, 63 interceptions eight forced fumbles and eight fumble recoveries during his pro career, per Pro-Football-Reference.com.
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