David Dishneau

Authorities' refusal to provide more than a few sketchy details about the Freddie Gray investigation is fueling suspicion and mistrust as a weekend of protest rallies looms. The secrecy may be legally appropriate, but many in Baltimore were finding it hard to be patient Thursday when police took no questions at a news conference about the criminal investigation findings they turned over to the state's attorney's office.

Having weathered two all-night curfews with no major disturbances, Baltimore officials are now trying to manage growing expectations they will immediately decide whether to prosecute six police officers involved in the arrest of a black man who later died of injuries he apparently received while in custody.

Maryland's governor said 2,000 Guardsmen and 1,000 law officers would be in place overnight to try to head off a repeat of the racially charged violence set off Monday by the death of Freddie Gray.