PREVIEW: John reveals to Marlena that Tony tried to kill him; Eugenia has a hard time keeping Lexie's secret; Rex attempts to unlock his DNA. SUMMARY: **from SoapCity.com** Tony is having a nefarious business meeting at Echelon when John arrives and works his way past the guard. He catches Tony off guard and confronts him about leaving him to die. Tony assures John that he'd rather have him alive and feel the same pain that Tony felt when John stole Kristen away from him. John goes for Tony's throat and is pulled away by the security guard. Meanwhile, Marlena tries to analyze her feelings for Tony as she spills her emotions onto her tape recorder at work. John comes to see her and reveals that Tony tried to kill him... Brandon checks in on Lexie in the trauma center and remembers coming to the hospital with Fay and Paul after Paul had beat both of them during a fight with Fay about her affair with Abe. Meanwhile, Sami struggles to convince Eugenia not to tell Brandon that he is r