However, the prosecution at the Old Bailey alleged that the motheroftwo shook Joshua in a fit of temper as she cared for him and five other children, including his fiveyearold sister Katrina, who suffers from cystic fibrosis. Joshua's mother Elizabeth told the court she had insisted her children should not be smacked or placed in a baby walker, which she believed hindered their development. However, the childminder admitted that Joshua had been in a baby walker when he stopped breathing and, she said, she shook him twice "firmly but not violently" to revive him.