Absolutely true, Obama spent most of his presidency acting as Apologist in Chief for any manner of violent criminals and radicals.
Fort Hood — Workplace violence lie (presumably Hasan was an aggrieved diversity hire, judging by his Middle Eastern ethnicity and shouting ‘Allahu Akbar!’ during his killing spree).

Pulse Nightclub — Obama’s DOJ spread misinformation about Mateen’s motives, attempting to conceal the fact that he clearly proclaimed ‘Allahu Akbar!’ as he killed.

Skip Gates freak-out — Cambridge cops ‘acted stupidly’ when they asked for proof of residence at a house that had been broken into.

Trayvon Martin — Thug who got shot assaulting a neighborhood watch volunteer while suspended from school ‘could have been his son’.

Michael Brown — ‘Hands up, don’t shoot’ lie on behalf of a weed-toking strong-arm robber.

Micah X — Impossible to say why the self-admitted white-hating black nationalist whose social media was replete with anti-white and anti-police posts killed those five cops.
