| Name: | | Jason Andrew Knapp |
| Classification: | | Endangered Missing Adult |
| Alias / Nickname: | | Jas |
| Date of Birth: | | 1977-12-30 |
| Date Missing: | | 1998-04-12 |
| From City/State: | | Clemson, SC |
| Age at Time of Disappearance: | | 20 |
| Gender: | | Male |
| Race: | | White |
| Height: | | 72 inches |
| Weight: | | 150 pounds |
| Hair Color: | | Lt. Brown |
| Eye Color: | | Blue |
| Complexion: | | Light |
| Identifying Characteristics: | | Faint scar on knuckle of middle finger of right hand. |
| Clothing: | | Blue jeans, white T-shirt, athletic shoes. |
| Jewelry: | | Possibly wearing a watch. |
| Circumstances of Disappearance: | | Unknown. Jason was last seen at his apartment in the vicinity of the 100 block of Calhoun St. in Clemson, SC. His vehicle was found at Table Rock State Park in Pickens, SC approximately 30 miles from his apartment. Despite an extensive search of the park area, Jason has not been located. |
| Investigative Agency: | | Clemson City Police Department |
| Phone: | | (862) 624-2006 |
| Investigative Case #: | | MP38980012 |
| NCIC #: | | M-115258619 |