>> reporter: med star hospital center says the police officer who was injured in that chase has now been released and that 1-year-old is in good condition and being held in protective custody. fred? >> joe johns, thanks so much on capitol hill. so we're learning more this morning about the woman, the driver police say instigated this very frightening chase and in the end, was shot dead behind the wheel. we now know that miriam carey was 34-year-old and that she lived in stanforstanford, conne. carey may have suffered from postpartum depression. her boyfriend said she had trouble sleeping recently and had delusions about being under surveillance. according to the source the boyfriend told police ten months ago he was worried about the safety of the couple's baby girl. joining me cnn law enforcement analyst and former d.c. detective mike brooks. investigators found a letter in carey's apartment addressed to her boyfriend and we're told it had suspicious white material in