He was living in an Islamic enclave near Houston and near a ‘radical’ mosque. His muslim neighbor didn’t think it was odd he was taking nothing with him on a move to New Orleans because his next place was furnished. How many furnished apartments in New Orleans come complete with prayer rugs, expensive looking Korans and sets of Hadiths? For an apparently pious muslim (using that rug 5x/day) they’d seem pretty important and not difficult to pack along in a pickup truck. Only reason not to would be if he never expected to need them again; because he was planning martyrdom.
And his “enclave” neighbors had no idea of what he was up to.