Federal officials hope to inform Dzhokhar Tsarnaev of charges as early as today, a Department of Justice official tells CNN's Pamela Brown.
The 19-year-old suspect in the Boston Marathon bombing remains in serious but stable condition in a Boston hospital, where he's under heavy guard.
While a presentment of charges could take place Sunday, an official arraignment would take place later. Normally, a person who faces federal charges must be arraigned within 48 hours.
