and he had ties to terrorist watch lists. reporter: the college grad with an engineer degree began to change. his diaries show as early as 2013 he was thinking about is m islamic martyr dom and in 2014 he traveled to jordan several months where he stayed with his uncle. the investigation is ongoing and the uncle in jordan has been detained and is being questioned. reporter: friends of his who didn t want to be on camera said while he hated isis he began to change after his trip and say he learned more about his palestinian background and was enlightened about who he was and came from. this is something he evolved into, sort of a radicalized some way. reporter: muhammad also apparently was watching online video s of the deceased cleric