22-year-old daughter Jessica Jackman is still unaccounted for

Jun 25, 2013 13:51 GMT  ·  By

More information has come to light about a woman still missing after the two-boat accident on Lake Powell that killed her mother.

As I reported, recovery teams have already found two bodies after a motorboat crashed into a houseboat on the Utah lake. The remains of 57-year-old Marilyn Jackman of South Jordan and her son's girlfriend, 29-year-old Valerie Bradshaw, have been located.

Jackman's 22-year-old daughter, Jessica Jackman, is still out there and she is presumed dead. Authorities are saying that she suffers from Stickler syndrome, which causes vision and hearing loss and joint weakness, leading to motor disability.

She attended Salt Lake City’s Westminster College where she recently got her social work degree.

According to the Salt Lake Tribune, the motorboat was being steered by her father, Adrian, who has survived the incident.