CADILLAC, Mich. (AP) — A man charged with killing a Cadillac toddler before the case was dropped has lost an appeal in a lawsuit against doctors who examined evidence.

David Ferris claimed his constitutional rights were violated because opinions by the doctors led to a murder charge against him in Wexford County. A federal appeals court said Friday that the doctors might have been negligent but they didn't violate Ferris' rights.

Nineteen-month-old Kalla Fisher died in 2013. She was the daughter of Ferris' future wife.

Ferris was charged with murder, but the case was dropped after a Detroit-area forensic pathologist found errors in the autopsy and a different cause of death.

The Grand Rapids Press says Ferris settled a lawsuit against Cadillac police and the Wexford County medical examiner for $250,000.