Alexandria Lowitzer disappeared after getting off the bus near her home in Spring April 26.

September 7, 2010 

Their nights have been sleepless, their days filled with worry, and their efforts relentless.

John and Jo Ann Lowitzer want their daughter back.

Alexandria "Ali" Lowitzer, 16, disappeared after getting off the school bus near her home in Spring April 26. Her parents haven's seen her since.

"We get leads all the time," said John. "They're just all dead ends."

Numerous sightings of Ali have been reported in the months since her disappearance, but so far the girls have all turned out to be look-alikes.