Kayleh's mother, April Wilson, told ABCNews.com that this is not typical behavior for her daughter and that she never suspected anything out of the ordinary when she said goodbye to her daughter before she left for the party.
She walked over to the couch and said, 'I love you,' and 'I'll be home by 7,' and she walked out the door and that was it," Wilson said. "She had been talking about the party. She was really looking forward to it."
Brittanee Drexel was 17-years-old when she went missing from Myrtle Beach, S.C. in April 2009.
There for a spring break trip her mother had forbidden, Brittanee was seen leaving the BlueWater Resort visiting a group of Rochester-area men after having a falling out with the friends she'd originally accompanied to the popular spring-break destination.
Earlier this week, investigators announced that they had identified as many as four persons of interest in connection to Brittanee's disappearance.
But with the new information came discouraging news for Brittanee's family, who were upset that authorities said publicly that they do not think the teen is still alive.
"Based solely on the information we have right now, we do not feel like she is alive," Georgetown County Sheriff's Office spokesman Lt. Neil Johnson said.
Brittanee's mother, who has said she didn't want her daughter going on the trip because there were no adult chaperones, told ABCNews.com that she still believes her daughter is alive, and plans to head to South Carolina to continue to search for her.
"We're still hoping she's alive, yes," Drexel said. "I think it was a little premature and I find it appalling that [the police] don't think she's alive."
Drexel said that while authorities have given her little information about the people of interest, she believes they are locals from the Myrtle Beach area and not friends of her daughter's from New York.
"I think that Brittanee either could have been trafficked or someone is holding her against her will," Drexel said. "I'm hoping she'll be strong enough to get away or we'll be able to find her."
The girl's aunt, Keri Drexel, introduced a set of playing cards featuring her niece and other missing children. The decks are being distributed to inmates in the Florida prison system hoping someone will know what happened to Brittanee and will be willing to speak up.
Lindsey Baum, 10, was walking home from a friend's house in the small town of McCleary, Wash., in June 2009 when she vanished.
The 10-minute walk down a heavily populated suburban street between her house and a friend's was one she did often, and had never concerned her mother, Melissa Baum.
Baum is convinced her daughter was kidnapped and still believes she is alive.
The FBI has so far identified 12 persons of interest in the case, inside and outside of McCleary, with at least two people of high interest.
Grays Harbor County Undersheriff Rick Scott told ABCNews.com that investigators are still combing through a "tremendous amount of information" they gathered during a two-week search for the girl in March.
"At this point, we still have no concrete information into her disappearance," said Scott. "I will always have hope she's alive until there is evidence that clearly states the contrary."