Sheriff: Fla. mom killed her baby then disappeared

Polk County Sheriff's detectives are searching for a suicidal mother who allegedly killed her one-year-old boy.
 
 Sheriff Grady Judd said Friday that Isham Patel died from 'blunt force trauma.'

Officials say the boy's mother suffers from postpartum depression and she wasn't taking her medication.
 
On Thursday, Neha Patel went missing with her baby. Patel's husband reported them missing.  Authorities say she came home Friday morning with the baby wrapped in a blanket and told her husband that she had killed him.
 
Neha Patel said she was also going to kill herself and left the home. She last used her credit card at 5:33 a.m. but hasn't been traced since.