police hope he can help them find whoever killed karina va traun know. detectives say the man was seen in the area about the same she was killed. he is not a suspect. meanwhile police in greenville, south carolina stepped patrols after reports of clowns trying to lure children into the woods. most of the alleged sightings took place behind an apartment complex. they say the clown tried to entice them by showing them money. >> a man runs 10 to 20 miles a day while spinning a oyo yo. it helps him stay focussed. >> he carries his sobriety metal. he has it in his shoe. he got over his addiction to alcohol by replacing it with running. now with the yo yo, he says it keeps him moving forward. >> i'm not a coordinated person. i think i might hurt myself running with a yo yo. >> i don't know if i could yo yo without running. he says mom and dad used to drop him off at the ymca, and he would skip out and go to bars, and he started running and hasn't had a drink since. >>> coming up, a homeowner discovers uninvited house guests. >> caught on home surveillance syst