CBI has taken custody of three accused in Ryan school student murder case from Haryana police. Earlier, a Central Bureau of Investigation team reached Gurugram's Ryan International School to investigate the murder of the 8-year-old student. <br/><br/>The team included experts from the Central Forensic Science Laboratory who would collect evidence from the crime spot. The class 2 student was found dead with his throat slit in a toilet of the school on 8th of this month.