>> marilyn mosby faulted police conduct from the moment they came in contact with freddie gray saying they had no probable cause to arrest him, did not properly secure him and ignored his pleas for medical attention. >> the finding of our comprehensive thorough and independent investigation coupled with the medical examiner's determination that mr. gray's death was a homicide which we received today, has led to us believe we have probable cause to file criminal charges. >> mosby claims freddie gray suffered his spinal injury inside the police van and police failed to follow policy to put a seat belt on him. she also said in the van's fourth stop police knew then that freddie gray was completely unresponsive yet took no action. that would undermine dante allen's statement that he heard banging as if gray was hitting his head against the walls of the van.