Burke Ramsey — the brother

Burke Ramsey is JonBenét's older brother. He was nine years old when she was murdered in 1996. Some theorists believe that he killed JonBenét when he angrily threw a flashlight at her head. There was a blow to JonBenét's head and a flashlight in the kitchen, where the two kids had allegedly eaten pineapple before bed. It was discovered that JonBenét had eaten pineapple shortly before being killed.

This popular theory also posits that the parents are to blame for covering it all up as a kidnapping. On the CBS special "The Case of: JonBenét Ramsey" that aired in fall of 2016, professional investigators looked into the case and interviewed friends of the Ramseys and concluded that Burke likely did it. In December 2016, Burke filed a lawsuit against CBS for a massive $750 million, alleging defamation.