The family of a woman who has been missing for more than a month has doubled the reward for information in her disappearance. 

Lynn Rickard, 59, hasn't been seen since June 25 at her Kansasville home in Racine County. 

The Sheriff's Office says Rickard suffers from mental illness and medical issues. 

Less than a month ago, Milwaukee Police's mounted unit was called in to help search, but so far, they've found nothing. 

Her husband says he's not giving up. 

"I'm helpless, I just don't know what to do. I've been praying and maybe it'll give incentive for someone to come forward," says John Rickard.

The reward has been increased to $25,000 for anyone who provides information that leads them to Lynn. Anyone with information in the investigation is asked to call 262-886-2300