(Gresham, OR)  --  Police are seeking the public's help in their search for a Gresham man who's been missing since January 18th.  Family members say it's out of character for 24-year-old Cameron Lowell Combs to remain out of touch for so long.  Combs is described as white, five-feet-six, weighing 135 pounds, with brown hair, brown eyes, and a tattoo that reads "420" on one arm and a cross tattoo on the other.