(CNN) — Months after the bodies of three young sisters were found suffocated and abandoned in the Washington state wilderness, authorities believe they’ve found the remains of the man accused of killing them: their father.

Investigators found bone fragments, other human remains and clothes that look similar to what Travis Decker was wearing before his three daughters were found dead at a campsite in the Washington Cascades, Chelan County Sheriff Mike Morrison told CNN on Friday.

The hunt for Decker spanned three countries and yielded false alarms from tipsters across the US. But the search may have ended just 0.74 miles away from the June crime scene – in terrain that is virtually uninhabitable and barely accessible.

“That’s straight uphill. You’re almost looking like a little over

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