The new designer "bath salts" drug may have played a role in the murders and suicide of a Fort Lewis soldier and his family.
The Thurston County Coroner said on Thursday he ordered tests investigating whether the drug was a factor in the deaths of David Stewart, his wife and their 5-year-old son.
Two weeks ago, Stewart shot and killed his wife and then turned a gun himself during a police pursuit on Interstate 5 near Tumwater.
Their son was found dead inside their Spanaway home. The Medical Examiner said he had been suffocated.