At a Tuesday hearing, attorneys for accused Fort Hood gunman Nidal Hasan said that aiding him in pursuing his current defense strategy would cross an ethical line.

Hasan asserts that he carried out a 2009 mass shooting on base in order to protect Taliban leaders and fighters from American troops deploying to Afghanistan. His attorneys said they will seek to withdraw from the case should they be ordered to help Hasan develop this defense strategy.

Judge Col. Tara Osborn has given Hasan’s former lead defense attorney until noon Wednesday to provide sealed motions explaining why they cannot, in good conscience, provide Hasan with legal opinions regarding his research efforts in preparing for the case.