According to officials, the fire was caused by a 15-year-old student who was enraged after her
mobile phone was confiscated. The girl allegedly made threats following disciplinary action for her involvement with an older man. The teenage suspect, who was hospitalized with burn injuries, confessed to the arson. After authorities sought guidance on whether to press charges against her, they eventually received advice to charge her with 19 counts of murder. On May 29, the girl was charged as an adult with 19 counts of murder. She appeared by video before a court in Georgetown; the court ordered that she be held at a juvenile holding centre until further proceedings take place. If she is found guilty, the suspect could be sentenced to life in prison. On July 5, the charges were amended to 20 counts of murder. ==Investigation==