A father accused of bashing his six-week-old baby boy has now been charged with murder.
Micheal Ashely MacRae, 25, had initially pleaded not guilty to aggravated grievous bodily harm after allegedly causing "catastrophic injuries" to his son Nathaniel in October 2017.
Nathaniel suffered blindness and bleeding to his brain.
He died at his home in Golden Bay a year later, shortly after his first birthday.
Police then launched an investigation into whether the baby's death was a result of the alleged assault he received as a newborn.
On Monday, prosecutors told the Supreme Court the charge has now been upgraded to murder.
Mr MacRae's bail was revoked due to the upgraded charge and he was remanded in custody.
A bail hearing has been set for August 6.
The trial is set to begin in April next year.

Nathaniel and his mother Erica-Leigh Lawrence. PIC: Facebook
Concerns for missing woman last seen in Baldivis
Peel Cavaliers break nine-year drought to win Country Championships
City tees up new vision for Kwinana Golf Course
Warnbro man charged with more child abuse, animal cruelty offences
Teen threatened, robbed by offenders on e-scooter in Mandurah
Labor candidate for Secret Harbour Georgia Tree vows to fight for locals
Safety Bay man arrested after Perth police pursuit comes to crashing end
Port Kennedy before and after school care provider fined $33k after 'distressed' boy left alone in room
Dog ball library created at Dawesville beach in memory of beloved pet