The artistic director of the theatre, Gabriele de Luca, reportedly claimed that Mr Schumacher changed the content of the scene, saying the character was originally meant to die from a gun shot rather than a hanging.
However, Mr Schumacher's family and friends have denied that it was a suicide attempt, maintaining it was a tragic accident.
His mother said: "My son recently lost his father and had ended a relationship but had found his serenity again.
“He didn't leave a suicide note and had no reason to kill himself."