A Hamilton man who offered to look after his girlfriend's baby girl to show her that he could "step up" when needed has pleaded guilty to manslaughter in the 2023 death of the 3½-month-old. Advertisement AdvertisementAdvertisement AdvertisementCrown lawyer Kelli Frew noted the baby's mother, family and supporters were in the courtroom at the time. The baby's mother called several times and messaged with Warren-Baker throughout the day, Frew said. (Justin Chandler/CBC)He instead messaged the baby's grandmother, telling her the child was non-responsive and barely breathing. All injuries were caused by Warren-Baker, Frew said, and they cannot be explained by any version of events he provided.