The New Hampshire Supreme Court overturned Adam Montgomery's murder conviction in his daughter Harmony's death.
The court ruled the murder charge should have been tried separately from an assault charge, because a discrepancy in the strength of the evidence for each undermined the fairness of the trial.
Prosecutors plan to retry Montgomery on the murder charge.
AI-generated summary was reviewed by a CNN editor.
The New Hampshire Supreme Court overturned the murder conviction of Adam Montgomery in the death of his 5-year-old daughter Harmony in a case that had spurred sharp criticism of the child protective services system.
