text:  The trial resumed on March 4 , 2013 with testimonies from expert witnesses in the fields of criminal psychology ( Tereza <unk> , appointed by the court ) and psychiatry ( Alena <unk> , appointed by the defense ) . Blythe returned to attend the hearings in person , even though the presiding judge had told him that at this point they may be undertaken in his absence . The two expert witnesses agreed that Blythe is not aggressive ; nevertheless , he may have issues with controlling his emotions under stress . The court further heard testimonies from two eyewitnesses . One of them was a bodyguard who was present at the concert but did not see the fall . He testified that when by the exit , he saw two men taking a third man out of the building to fresh air . He said that he was told by them that the person fell off the stage . The ambulance arrived 5 – 10 minutes later . 
  