An SNL writer has shared an emotional post in the search for his missing sister, who vanished five months ago without trace. Christina Lynn Downer, the sister of Jimmy Fowlie, disappeared suddenly last year, with police sharing that she was last contacted in late November.She has not been seen or heard from since. Fowlie, 40, took to Instagram to share an image of Downer as a young girl, adding that he was “thinking about her everyday.” “For the people who have asked, there’s no updates i (sic) can share,” he wrote. “thank you (sic) for checking in and for your prayers.” Downer, who was 38 at the time of her disappearance, was last seen in the Koreatown neighborhood, according to another post uploaded by Fowlie. 'SNL' scribe Jimmy Fowlie (right) is asking for the public's help to find his older sister, Christina (left) (jimmyfowlie/Instagram) Fowlie said on Instagram that the last time he saw Downer in-person was on September 17.…