it just doesn't make sense. >> the killing of four year old barbara jean-- >> when detective marty and his partner took over the barber jean hornck to square one. >> they felt that barbara jean must have been killed on the block. very near to where she lived. and they decided to canvas it again. >> none of the neighbors had any new information. but detectives learned that the man who lived across the street had moved across town the year after the crime. his name was walter ogrod. a single, 27 year old philadelphia native. who worked as an overnight bakery truck driver. >> they called him up and asked him to come in as a witness. they said we're just talking to people in the neighborhood, and he said all right. and he went in. >> they told him he was going to go see the philadelphia police about the murder. >> walter ogrod friend, steve, vividly remember speaking with him that day. >> i said you should not go down there without a lawyer. i express that numerous times. maybe three or four times. >> walter ogrod said he had nothing to hide. and drove himself to police headquarters. he told the detectives that he had no idea what

. >> the haunting mystery of barbara jean horn. >> there is no justice.