MARION, Ind. (WANE) -- A Silver Alert is in effect for a man missing from Marion. Merrill Andrews is 83-years-old, 5'6" and 170 pounds, with white hair and blue eyes. He was last seen wearing a tan baseball cap, blue puffy coat, blue jeans and white tennis shoes. Andrews was last seen at 4 a.m. on Sunday, October 20th. He is believed to be in extreme danger and may require medical assistance.  If you have any information, contact the Marion Police Department at 765-674-3321 or call 911.