Trial is scheduled to begin next week in Everett for a Marysville police officer charged with manslaughter in the death of his 7-year-old daughter.

Snohomish County prosecutors say Officer Derek Carlile failed to heed the danger of leaving a loaded handgun alone in a parked van with his four children. A 3-year-old son found the gun last March in Stanwood and fired a shot that killed 7-year-old Jenna.

The Daily Herald reports (http://is.gd/uJYl0F) defense lawyer David Allen says prosecutors cannot prove that Carlile caused his daughter's death.

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Information from: The Daily Herald, http://www.heraldnet.com