Texas : Police say more testing is needed after questions are raised over suspected gun parts . Police said they found a laser printer along with a suspected 3-D plastic gun and trigger . Police are investigating a man arrested on suspicion of making gunpowder . A Texan student was made to take down online instructions for making a handgun this summer .
NEW : Police say more testing is needed after doubts are raised over suspected gun parts . Police said they found a 3-D printer along with a suspected 3-D plastic magazine and trigger . Police are questioning a man arrested on suspicion of making gunpowder . A Texan student was made to take down online instructions for printing a handgun this summer .