and 2012. he said he brought them for farook as a way for farook to avoid getting any scrutiny from the police and so he's been doing these interviews with the fbi for just over a week now after he checked himself into a mental institution after the san bernardino attacks. we know that he's provided a great deal of information to investigators and they were simply waiting to see how long they could get information from him before they decided to arrest him. all along they knew they would charge him. >> that was the presumption. it was confusing. this guy bought the guns and so implicated in understanding why did it take so long but explain how investigators have been playing this guy. he waived his miranda rights early on. what did that give investigators they would not have? >> provided a great deal of information including this idea that he and farook plotted a 2012 attack. this is something that they decided that they weren't going to carry out in the end.