The man who last saw Mercedes Lain alive is now charged with her murder.

Justin Miller is the man whom Lain’s parents left her with for a weekend earlier in August.

The 11-month-old girl’s body was discovered in a rural part of Starke County.

The coroner says she had been hit in the head.

Investigators are now saying it was Miller who did so — and now he is charged with murder, on top of the neglect resulting in death charges.

Lain’s parents are also charged with neglect.