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Kurt Cobain of Nirvana during the taping of MTV Unplugged at Sony Studios in New York City, 11/18/93. Photo by Frank Micelotta. ( ID_Kurt_Cobain )

This April 1994 photo provided by the Seattle Police Department shows items found at the scene of Kurt Cobain's suicide, in Seattle. The image has never before been released. Police spokeswoman Renee Witt said Thursday, March 20, 2014, that several rolls of undeveloped film were found when a detective re-examined the Cobain case recently. (AP Photo/Seattle Police Department) ( Kurt Cobain Investigation )

This undated photo provided by Kim Cobain shows a young Kurt Cobain in his childhood home in Aberdeen, Wash. Cobain's mother, Wendy O'Connor, is putting the two-story Aberdeen bungalow - which is assessed at less than $67,000 - on the market for $500,000. But she'd also be happy entering into a partnership with anyone who wants to turn it into a museum. (AP Photo/Courtesy Kim Cobain) ( Kurt Cobain House )

American singer and guitarist Kurt Cobain (1967 - 1994), performs with his group Nirvana at a taping of the television program 'MTV Unplugged,' New York, New York, Novemeber 18, 1993. (Photo by Frank Micelotta/Getty Images) ( T681266_14 )

Kurt Cobain performing at the 1992 MTV Video Music Awards on September 9, 1992 Photo by Frank Micelotta/ImageDirect ( ID_Kurt_Cobain_02 )

Kurt Cobain of Nirvana during the taping of MTV Unplugged at Sony Studios in New York City, 11/18/93. (Photo by Frank Micelotta/Getty Images) ( id_kurt_21.jpg )

SEATTLE, WA - APRIL 8: A police officer stands guard on the back porch of Kurt Cobain's garage where Cobain's body was found early 08 April 1994 in Seattle, WA, after an apparently self-inflicted gunshot wound. Cobain, 27, was the lead singer of the Seattle-based grunge rock group Nirvana. (THERESE FRARE/AFP/Getty Images) ( SAWH990617642170 )

This undated photo provided by Kim Cobain, Kurt Cobain's sister, shows a young Kurt Cobain, left, and Kim in their childhood home in Aberdeen, Wash. Cobain's mother, Wendy O'Connor, is putting the 1.5-story bungalow _ which is assessed at less than $67,000 _ on the market for $500,000. But she'd also be happy entering into a partnership with anyone who wants to turn it into a museum. (AP Photo/Courtesy Kim Cobain) ( Kurt Cobain House )

American singer and guitarist Kurt Cobain (1967 - 1994), performs with his group Nirvana at a taping of the television program 'MTV Unplugged,' New York, New York, Novemeber 18, 1993. (Photo by Frank Micelotta/Getty Images) ( T681266_04 )

Kurt Cobain, front man of the rock group Nirvana, is shown during a benefit concert at the Cow Palace in Daly City, Calif., April 9, 1993. (AP Photo/Sam Morris) ( NIRVANA SHOW KURT COBAIN )

Rock singer Kurt Cobain (1967 - 1994) performs on stage with Nirvana at the MTV Video Music Awards, September 10, 1992. (Photo by Frank Micelotta/Getty Images) ( T750376_01 )

File picture of Kurt Cobain, former singer and songwriter of the Seattle band "Nirvana", would have celebrated his 29th birthday, Tuesday, Feb. 20, 1996. According to his widdow Curtney Love he commited suicide, April 5, 1994, under the influence of Heroin. (AP Photo/Robert Sorbo) ( KURT COBAIN )

In this photo taken Monday, Sept. 23, 2013, a sign marks the location of "Kurt Cobain Landing," a tiny park blocks from the childhood home of Kurt Cobain, the late frontman of Nirvana, in Aberdeen, Wash. Cobain's mother is putting the tired, 1.5-story Aberdeen bungalow on the market this week, the same month as the 20th anniversary of Nirvana's final studio album. The home, last assessed at less than $67,000, is being listed for $500,000, but the family would also be happy entering into a partnership with anyone who wants to turn it into a museum. (AP Photo/Elaine Thompson) ( Kurt Cobain House )

In this undated photo provided by Kim Cobain, a young Kurt Cobain plays guitar in his childhood home in Aberdeen, Wash. Cobain's mother, Wendy O'Connor, is putting the 1.5-story Aberdeen bungalow - which is assessed at less than $67,000 - on the market for $500,000. But she'd also be happy entering into a partnership with anyone who wants to turn it into a museum. (AP Photo/Courtesy Kim Cobain) ( Kurt Cobain House )

In this 1993 file photo, lead singer of Nirvana Kurt Cobain is photographed. Seattle police in April 2014, plan to release new photographs discovered during a re-examination of the death of Nirvana's Cobain. Cobain, who was 27 when he died. (AP Photo/Mark J.Terrill, file) ( Kurt Cobain Investigation )

This 1991 file photo shows the band Nirvana, from left, Krist Novoselic, Dave Grohl, and Kurt Cobain. Nirvana will be inducted into the 2014 Rock and Roll Hall of Fame on April 10, 2014, at the Barclays Center in New York. (AP Photo/Chris Cuffaro, File) ( Music Rock Hall )

This undated photo provided by Kim Cobain, Kurt Cobain's sister, shows a young Kurt Cobain, left, and Kim in their childhood home in Aberdeen, Wash. Cobain's mother, Wendy O'Connor, is putting the 1.5-story bungalow _-which is assessed at less than $67,000 - on the market for $500,000. But she'd also be happy entering into a partnership with anyone who wants to turn it into a museum. (AP Photo/Courtesy Kim Cobain) ( Kurt Cobain House )

This Dec. 13, 1993 file photo shows Kurt Cobain of the Seattle band Nirvana performing in Seattle, Wash. After hearing from Kurt Cobain and Nirvana fans across the United States, the Washington state city of Aberdeen is keeping the words “Come as you are” on a welcome sign. KBKW and KXRO report Mayor Bill Simpson announced at Wednesday night’s City Council meeting the sign will stay. The mayor received more than 300 emails after reports that the reference to a Nirvana song would be dropped when the sign is replaced. “Come as you are” was added to the “Welcome to Aberdeen” sign in 2005 following the 10-year anniversary of Cobain’s 1994 death in Seattle. Cobain grew up in Aberdeen. (AP Photo/Robert Sorbo, file) ( Aberdeen-Come As You Are )

This 21 May, 2001 file photo shows US actress/musician Courtney Love (L) pointing to a photographer as she arrives with her daughter Frances Cobain (R) for the world premiere of the movie "Pearl Harbor" on the deck of the US Navy aircraft carrier USS John C. Stennis in Pearl Harbor, Hawaii. Love, 39, is the widow of grunge rock icon Kurt Cobain and front-woman for the group Hole. (MIKE NELSON/AFP/Getty Images) ( WAS2003110719127 )

12/2/96 Los Angeles, California: Courtney Love and Wendy O'Connor (mother of Kurt Cobain) at the premiere of "The People Vs. Larry Flynt." ( 122love20000_20010626_05036 )