Who is Caylee Anthony's father?

New documents released Friday shed light on who Caylee’s father may be. For the first time we're hearing from this woman named Melina Calbrese. In an interview with Orange County Sheriff’s Office Captain Yuri Melich on October 9, 2008, she says she's been close friends with Casey since middle school.

Melina says she thought Caylee's father was Jessie Grund, Casey’s former fiancé, until the couple broke up. By then Caylee was 9 months old. Calabrese says that's when Casey told her Caylee's father is "a really hot guy" named Josh from Georgia who she met at Universal Studios. Calabrese says Casey had a one night stand with josh at a hotel near universal studios and caylee was conceived. Josh had a girlfriend he was planning on marrying and already had a child.

Casey Anthony told Calabrese the same story she told her mother.caylee's father is dead, killed in a car accident around the time of caylee's second birthday.

Casey did have a rest in peace memorial to a guy named Josh on her facebook page. But Josh was not from Georgia. Fox 35 did find an obituary for a "Josh". At this point we're still not sure who Caylee's dad is. In sworn testimony last month Casey’s brother lee told lawyers he didn't know with 100 percent certainty who Caylee's dad was and neither do investigators.

FOX 35 has also learned Casey tried to hide her pregnancy and letting people know sometime around her 7th month. Caylee was born in August. Charles Crittenden, one of Cindy Anthony’s coworkers told investigators in an interview November 24, 2008, that some time in June Casey came to see her mom and work and was noticeably pregnant. He said "she had on this big coat was trying to cover it up."

Casey's grandmother told detectives she didn't realize her granddaughter was pregnant until around that time either. The co-worker said quote "I didn't know how Cindy didn't she was pregnant. But I didn’t know how she could not see that."