R Kelly lawyers hope mystery man can help defense

R. Kelly Pictures

** FILE ** In this May 28, 2008 file photo, R&B singer R. Kelly enters the Cook County Criminal Court Building, in Chicago as his child pornography trial continues. R. Kelly's attorneys told jurors that if they didn't see a fingernail-sized mole on the lower back of the man in a sex tape at the center of the pornography case, then that man's not Kelly. It seems now that the defense had been caught in a trap they'd set themselves. (AP Photo/M. Spencer Green/file)

AP

R&B singer R. Kelly enters the Cook County Criminal Court Building, Wednesday, May 28, 2008, in Chicago as his child pornography trial continues. (AP Photo/M. Spencer Green)

AP

R&B singer R. Kelly enters the Cook County Criminal Court Building Wednesday, May 28, 2008, in Chicago as his child pornography trial continues. (AP Photo/M. Spencer Green)

AP

R&B singer R. Kelly waves to supporters as he enters the Cook County Criminal Court Building Wednesday, May 28, 2008, in Chicago as his child pornography trial continues. (AP Photo/M. Spencer Green)

AP

This artists rendering shows R&B singer R. Kelly, right, watching in court as prosecutors played the sex tape at the center of his child pornography trial in open court in Chicago on Tuesday, May 20, 2008, just hours after opening statements in which they accused the R&B singer of choreographing and starring in the footage with an underage girl. (AP Photo/Lou Chukman)

AP

This courtroom sketch shows R&B singer R. Kelly, right, listening in court as Cook County prosecutor Shauna Boliker gives her opening statements on the first day of Kelly's child pornography trial in Chicago, Tuesday, May 20, 2008. Cook County Judge Vincent Gaughan presides over the trial. Prosecutors played the sex tape at the center of the child pornography trial in open court, just hours after opening statements in which they accused the R&B singer of choreographing and starring in the footage with an underage girl. (AP Photo/Lou Chukman)

AP

This courtroom sketch shows R&B singer R. Kelly, right, listening in court as his defense attorney, Sam Adam Jr., gives his opening statement on the first day of his child pornography trial in Chicago, Tuesday, May 20, 2008. Cook County Judge Vincent Gaughan presides over the trial. Prosecutors played the sex tape at the center of the child pornography trial in open court, just hours after opening statements in which they accused the R&B singer of choreographing and starring in the footage with an underage girl. (AP Photo/Lou Chukman)

AP

R&B musician R. Kelly arrives at court in Chicago for the first day of opening arguments for his child pornography trial Tuesday, May 20, 2008. (AP Photo/Paul Beaty)

AP

Recording artist R. Kelly arrives at the Cook County Criminal Courthouse for the first day of his trial in Chicago, May 20, 2008. REUTERS/Kamil Krzaczynski (UNITED STATES)

Reuters

R&B musician R. Kelly arrives at the Cook County building in Chicago, Ill., for the first day of opening arguments for his child pornography trial Tuesday, May 20, 2008. The singer, who has pleaded not guilty, faces up to 15 years if convicted. Kelly won a Grammy Award in 1997 for the gospel-tinged "I Believe I Can Fly." (AP Photo/Paul Beaty)

AP