After Daniel Rigby was convicted of Rio's murder, a police family liaison officer read a statement on behalf of his family
Manchester Crown Court heard Daniel Rigby beat and stamped on two-year-old Rio.
The toddler's injuries were so severe his liver was split in two.
His mother, Kirsty, will not be sentenced today.
She has been remanded into custody until expert reports can be written and sent to the judge.
A judge at Manchester Crown Court has jailed Rio Smedley's killer Daniel Rigby for life, with a minimum term of 17 years.
Daniel Rigby has been found guilty of murdering two-year-old Rio Smedley. He beat the two-year-old until his liver ruptured.
A jury at Manchester Crown Court has also convicted Rio's mother, Kirsty Smedley, of allowing his death.
The jury in the Rio Smedley murder trial have retired to consider their verdicts.
The two-year-old boy died after suffering 91 separate injuries.
His mother's boyfriend, Daniel Rigby, is accused of murder. He denies the charge.
His mother, Kirsty, is also charged with allowing his death. She also denies the charge.