Kamrowski had to rush the baby to hospital after she suffered a ‘medical emergency.’
Brynley was then air-lifted to hospital, where she died the next day.
It was found that the infant was killed by a traumatic brain injury, which a pathologist said was caused by violent shaking.
Killer Mason Kamrowski
Kamrowski struck a plea deal back in August, meaning by admitting to the murder, he would be charged with a life sentence and receive a 22.5 year jail sentence.
He will also have to register as an offender against children and spend five years on probation once he is released.
In an obituary for Brynley, it said how she ‘brought sunshine to everyone’s day with her sweet, sweet smile.’
Continuing, it read, ‘She loved to be sang to and fall asleep in your arms and always got so excited when she heard her bottle shake.
‘She hated tummy time and always wanted to be held.’
Kathryn LewseyKathryn is a Senior Features Writer for that's life! magazine. Her work has been published in The Sun, Daily Mail, Chat, Closer, Kidspot, Real People, Take a Break and MarieClaire.com.au