people leaving. everyone there taking pictures. you smay have seen meone. site or close to set e ly on time that theinh line is sort of more porous than its normally, he tusands and thousands of people coming through. family members,edeveryone. ando someo mayave a rprar.e of ttotti it would have been very hard to put something there that is 48 hours before. it's not locked down, b it's pretty secure. there was a backck, somne would have seen it. en marathon there, are as ndreds and thousands of bags, people are gti tir clothes, warm and thattan isn't just smart police work, it's just picking up on leads. and it's smart now not to make conclusions,ecse if you lead in one direction it means the real perpetrator hasime to veigio investigator's the