The ongoing protests of police violence against African-Americans is making this systematic horror more visible.
Police violence is all too common when the "suspect" (i.e., human being under the gun) refuses to answer and/or obey police orders. Many impairments make it difficult or impossible to perceive or respond to police orders, in this case, ordering a quadriplegic to stand up.
( Brutal behavior without death )The Hayes lawsuit
http://www.scribd.com/doc/283022677/Hayes-v-DSP-Complaint-28-Sept-15A mainstream media report from the (Delaware) News Journal
http://www.delawareonline.com/story/news/local/2015/09/28/paraplegic-woman-sues-dsp-raid-tactics/72981392/