A 27-year-old man turned himself in to authorities Tuesday in connection with the death of his girlfriend's infant son.
Ryan Mullen was booked into the Douglas County jail on suspicion of child abuse resulting in death.
Prosecutors say he is responsible for the Oct. 18 death of 8-month-old Payton Birtwell, his girlfriend's son.
Correction: Payton Birtwell's was misspelled in a previous version of this story.
Stay on Omaha.com for more on this developing story.