A 16-year-old boy wept in the dock as he appeared in court charged with the murder of his six-week-old son in Southampton.
The teenager, who cannot be identified for legal reasons, was supported by his mother at Southampton Magistrates' Court on Wednesday, three days after the baby was found with "serious injuries" at a mother-and-child residential unit.
Police were called to Defender Road at 5.05am on Sunday and the infant was taken to Southampton General Hospital, where he died.
Prosecutor Dan O'Neill told the court he had suffered "a bite to the nose and injuries to the head".
The case will be heard at Winchester Crown Court on Thursday, with the suspect to be held in a youth detention centre until then.
More from UK
He said "love you" to his mother as he was led from the court, to which she replied: "Love you, darling."
An 18-year-old woman was also arrested on suspicion of murder on Tuesday morning and remains under investigation, but has been released from police custody.