the forest service says there are a lot of gorges in the area that would make it easy to get lost. weather in the regionpast month has included rain, snow, and very cold temperatures. >>> back here at home, it's been five years since marcus johnson was shot and killed outside his home on first street in d.c., and every day since his mother has been on a mission to find his killer. news 4's pat collins has more on her daily struggle. >> reporter: mildred johnson is a mother on a mission. out to find out who killed her son. she goes to the scene and hangs up fliers. if they get torn down, she puts them up again. she's been doing this since the murder five years ago. >> they left my child in the street to die. pain, that's all i have. that's all i have left is pain. >> reporter: mildred johnson has three sons, maurice, a former tight end for the philadelphia eagles. he's in the pharmaceutical business today. shawn, a longtime employee for "the washington post." he's been there more than 20 years. but the son she thinks about every day, that's marcus, her baby boy. >> that's the son that looks so much like