Medical examiner finishes investigation of Arlington baby’s death

  • Wed Jan 4th, 2012 1:03pm
  • News

Herald staff

ARLINGTON — The Snohomish County Medical Examiner’s Office has finished its part of the investigation into the death of a 4-month-old Arlington boy in November.

Carson Crowder Williams likely suffocated on a plastic grocery bag while napping, police said. His mother, 17, is under investigation in connection with the death, court papers show.

The baby’s cause of death was ruled unexpected with a risk factor of an unsafe sleeping environment, the medical examiner concluded. The boy’s manner of death remains undetermined.

Snohomish County sheriff’s detectives have forwarded their investigation to prosecutors for review.