UPDATE | Freddie Gray's mother: Police lied about death

BALTIMORE (AP) — The mother of Freddie Gray is blaming police for her son's death and accusing officers of lying to investigators.

Gloria Darden spoke today after prosecutors said they were dropping the charges against the officers awaiting trial in her son's death. Darden says police "lied, I know they lied, and they killed him."

In a fiery defense of her case, prosecutor Marilyn Mosby blamed police for an investigation that failed to hold anyone accountable for the death of Gray, a young black man. Gray's neck was snapped in the back of a police van, and he died a week after his injury.

Mosby says she stands by the finding that Gray's death was a homicide, saying "we do not believe that Freddie Gray killed himself."

The father of Freddie Gray says the family stands by the Baltimore prosecutor who led the case against six officers charged in his son's death.

Richard Shipley said during a news conference today that the family "is proud to have her [Mosby] represent us."