in harrington, delaware, and they knew immediately this was a dead end. >> as soon as i saw richard mitchell, i knew he was not our guy. he had a full beard. and the suspect we're looking for was clean shaven. >> furthermore, mitchell's palmprints didn't match the print from the crime scene. he also had an alibi. >> as it turned out, he was not our man. >> back at the crime scene, investigators found another clue, blood on the light switch in the victim's living room was not the victim's blood. presumably, it belonged to the killer. >> he could have cut his hand on the door when he broke the glass to reach in to unlock the door to get into the house. >> a sample of the blood was sent to the fbi's forensic lab which confirmed it didn't belong to the victim's son, charles, or any of the other suspects in the case. >> certainly, it is a frustrating situation when you know you have good evidence and you just can't match it up. >> it was very frustrating. you have a lot of anger, you have so many questions. >> despite his denials, suspicions remained that charles holden still might have had somet

mitchell d. weeks. kristen d. willheit. pennsylvania -- richard a. champion. brian k. dixon ii. david kedra. cheryl a. pierce.ina -- joseph j. madaskovic. holmes n. smith jr. tennessee -- david c. johnson. darryl j. perrett. michael a. petrina. texas -- paul a. buckles. charles d. dinwiddy. lee dixon. jessica l. hollis. cleveland d. johnson jr. mark u. kelley. alejandro martinez, sr. michael j. naylor. michael a. pimmintel. jessie valdez, iii. utah -- corey blake ride. virginia -- brian m. berger. purcy lee house, iii. brian w.jones. washington -- derek a. hansen. wisconsin -- michael j. seversen. federal -- oswaldo o. albarati-casana. michael c. baskett. jair j. cabrera. jason m. crisp. brian j. feldt. alexander i. giannini. clinton holtz. brandon k. kountz. mark a. mayo. frank e. mcknight. ernest j. montoya, sr. tyler r. robledo geniel amaro-fantauzzi juaquin correa-ortega. marielis morales-santiago. francisco mujica de leon. carlos rivera-vega. mario torres-martin. acknowledgment of all deceased officers. mrs. amy scully, wife of alvin scully, florence township police department new jersey. acknowledgment

richard, thank you so much. great texan on the show. grab the book. there's a lot to learn there. that's all for us. i'm tamran hall. up next, "andrea mitchellts." ...this isn't that car. the first and only car with direct adaptive steering. ♪ the 328 horsepower q50 from infiniti. i love making sunday dinners. but when my back hurt, cooking all day... forget about it. tylenol was ok, but it was 6 pills a day. but aleve is just 2 pills all day. and now, i'm back! aleve. when a moment spontaneously turns romantic why pause to take a pill? and why stop what you're doing to find a bathroom? with cialis for daily use, you don't have to plan around either. it's the only daily tablet approved to treat erectile dysfunction so you can be ready anytime the moment is right. plus cialis treats the frustrating urinary symptoms of bph, like needing to go frequently, day or night. tell your doctor about all your medical conditions and medicines, and ask if your heart is healthy enough for sex. do not take cialis if you take nitrates for chest pain as it may cause an unsafe drop in blood pressure. do not drink alcohol in excess. side effects may include hea

mitchell d. weeks. [background sounds] kristen d. wilhikes [background sounds] pennsylvania. richard a.tennessee. dream to -- david t. johnson. [background sounds] darryl j. perett. [background sounds] [background sounds] michael a. petrina. [background sounds] texas. paul a. buckles. [background sounds] charles d. dinwitty. [background sounds] [background sounds] lee dixon. [background sounds] [background sounds] jessica l. hollis. [background sounds] [background sounds] cleveland d. johnson jr. [background sounds] mark u. kelly. [background sounds] alejandro martinez sr. [background sounds] michael j. naylor. [background sounds] michael a. himmentel. [background sounds] jesse valdez iii. [background sounds] utah. cory blake ride. [background sounds] virginia. brian m. berger. [background sounds] purcy lee house iii. [background sounds] brian w. jones. [background sounds] washington. derek a. hanson. [background sounds] [background sounds] [background sounds] [background sounds] [background sounds] wisconsin. michael j. seiverson. [background sounds] federal. oswaldo o. abralate casana