They received devastating news about their missing college-aged son. Weeks after he went missing, Christian Aguilar’s body was found in a wooded area in Levy County, Florida. For tonight’s, Carlos and Claudia Aguilar reflect on the case and share memories about their son. Watch ‘They Know Everything’ - tonight (June 20th) at 9/8c on ABC. Stream on Hulu. #truecrime #ChristianAguilar #investigation | ABC 20/20

Victor Oquendo travels through the Florida swamps to get a sense of what it was like for searchers in the case of missing college student Christian Aguilar: "It's a story of love, friendship, betrayal and a secret recording you'll only hear on 20/20." Watch his report on the case, 'They Know Everything,' premiere tonight (June 20th) at 9/8c on ABC. Stream later on Hulu. | ABC 20/20