Courier Mail | Mother of Tyrell Cobb pleads guilty to manslaughter Courier Mail TYRELL Cobb's mother has refused to take the blame for the blow that killed the four-year-old, just weeks after her ex-partner also denied responsibility and walked free from court grinning. Heidi Strbak today pleaded guilty in the Supreme Court to ... Tyrell Cobb: Mother Heidi Strbak pleads guilty to manslaughter of four-year-old son Mum pleads guilty to manslaughter of Tyrell Cobb Tyrell Cobb's mother admits to killing her four-year-old son |