police decideed that someone was marlow humbert. built the suspect's dna did not match that of the rapist. >> detective is going to go through the evidence with a fine tooth comb and the sketch will be put back out. we have a suspect out there that is wanted. we have not had a lot of cases jump out at us in that area since this incident has occurred. but we know we still have a suspect out there and we're going to take every measure to bring him to justice. >> reporter: for all of the merits of dna technology, the prosecutors say that the backlog of evidence contributed to an innocent man remaining behind bars for 16 months in this case. >> there are many case pending. just this week, i've had several cases where prosecutors were ready for trial with the exception of the dna evidence. >> reporter: city state's attorney jessie is doing the police department and city leaders to get some of the federal stimulus dollars to expand the ability to process dna samples in a more timely fashion. >>> prosecutors received the results of the sus

. >> reporter: police decided that someone was marlow humbert after a victim picked his picture out of a photo lineup. but the suspect's dna didn't match that of the rapist. and now police have their work cut out for them. >> detectives are going to go again, a fine-toothed comb, go through every shred of information. the sketch will be put back out well. definitely have a suspect out there that is wanted. we haven't had a lot of cases jump out at us in that area since this incident has occurred. but at the same time, we do know we still have a suspect out there. and we're going to take every measure to bring him to justice. >> reporter: for all of the merits of dna technology, prosecutors say the backlog of evidence waiting or the tested contributed to an innocent man remaining behind bars for almost 16 months in this case. >> there are many cases pending, and many of them are backed up. just this week, i've had several cases -- just this week i have learned of several cases where prosecutors were ready for trial with the exception of the dna evidence. >> reporter: the city state's at

police arrested 45-year-old marlow humbert. now they say dna evidence did not match up. so he was freed last july after sitting in jail for more than a year waiting for dna results. tonight prosecutors say why it took so long. >> the law enforcement community and prosecutors, this is not enough employees in the lab, as well as criminal analysts to complete the necessary work in a timely fashion. >> prosecutors say they applied for stimulus funds from the government to speed up the testing. >> the fbi needs your help to find a baltimore bank robber. this man robbed a bank on tuesday, m&t. 5'9, 210 pounds. he had a note threatening to shoot the teller with a 357 magnum. talk about a family tree. a father and daughter are charged with growing marijuana. authorities in kent county saw 63-year-old man and his daughter 10ing to the plants last week. nine plants in all were seized. more evidence was discovered in their queen anne's county house. charges are pending in both counties. >> muggy summer day. >> go to chief meteorologist vytas reid with the forecast. better than yest

then in may, 2008, police arrested 45-year-old marlow humbert., police thought they had the man. >> being able to put together that this suspect has the same mo, same general speech pattern, the same mannerism. >> the masked attacker followed one victim home on st. paul. dragged her inside at gunpoint and raped and robbed her. investigators say that victim, and other witnesses, identified humbert from a photo line up. >> but prosecutors say dna evidence did not match humbert. he was freed july 30. after sitting in jail for more than a year, waiting for dna results. >> prosecutors now. >> we need more dna analysts. >> on why it took so long on. >> the law enforcement community and prosecutors, and just simply are not enough employees in the lab as well as criminal analysts to complete the necessary work in a timely fashion. >> now with humbert's release. >> that is supposed to be accurate, dna. can it be wrong? >> a neighborhood on edge last summer, unsettled again this summer. >> you are walking around knowing there is a rapist loose, you know. i