All of your points are good. I am sure the press has been told by investigators to back off - and while the first instinct of the press would be to hide any evidence of Muslim involvement, I don't think they know enough about it at this point to be hiding much of anything.
I am glad that the FBI has taken over (or that is what I gathered from the most recent reports). The big mistake during the DC shootings was to leave it in the hands of the incompetent and biased local authority, the dread "Chief Moose." Maybe they've learned from this and are not going to let the local equivalent of Moose take over again and let more people get killed.
Remember that the British authorities refused to admit the 7/7 attacks were suicide attacks until 5 days later. And they didn't admit that the attackers were muslims until 6 days after the attacks.
Trust me having the feds in charge is a great idea especially if you knew our OU PD.