first, they couldn't understand why their prime suspect, oliver o'quinn, would kill her. and second, o'quinn had fled the united states to ireland in order to avoid prosecution. to smoke him out, investigators contacted the "irish times" newspaper. >> i e-mailed them a picture of michelle, a picture of oliver, and a synopsis of the homicide investigation, and told them he was wanted in the united states. they published it on three separate occasions. >> facing increasing pressure, o'quinn left ireland and flew to the west african country of senegal, where he was immediately turned over to u.s. authorities. once in custody, investigators got a court order to obtain o'quinn's dna sample, which was then compared to the dna found on the syringe cap. it matched. >> to me, i would equate that with getting the suspect's fingerprint off the trigger of the murder weapon. >> oliver made a great many mistakes, thank goodness. >> oliver o'quinn was charged with first-degree murder. the only remaining question was motive. >> i know he tried very hard to infuse himself into michelle's l