that question would launch a spellbinding mystery. you got a roommate. you got a boyfriend who she is maybe about to dump. you got an ex-boyfriend who s suddenly back in her life. there were a number of potential suspects, absolutely. reporter: was a killer out there? she was in danger. reporter: could police catch him? they d hatch a plan of virtual genius! one of the detectives said, you re not going to believe this! reporter: i m lester holt, and this is dateline. here s josh mankiewicz with mystery in orange county. reporter: orange county, california. on tv, it s a place of sun, fun, and privilege. it s where the real housewives first aired their dirty laundry. what is wrong? nothing s wrong with me. it s you. reporter: it s where the kids from the o.c. showed us all what temperature cool really was. who is that? reporter: around here, you get the sense everyone s rich and white, and lives in a mansion with a view of the pacific. but s
welcome back to mansions and millionaires, italy style. michael is hanging out at one of the world s most recognizable spots with one of italy s best kept secrets. next time, save a little room for me, come on, buddy. you got it. i m here at the coliseum in rome, a beautiful sight. getting off the plane and seeing this guy, ank lo of access italy, the go to guy for oprah and many other celebrities when they want to see rome. why is it everyone wants to see rome with you? because i love my city. and i think i know how to when it rome, do as the stars do. we re in italy getting the only tour oprah takes with the only man who can truly deliver. welcome to rome. angelo will show you all the city. our new pal is on the speed dial of oprah, stallone and michael j. fox and always by his side in work and play, wife eva and sons marko and simone and always on their agenda, showing you italy at the highest level. we re on top of the mayor s palace. yes, we are on the r
yes. but there s nothing to say what that was right. reporter: what had happened to this beautiful army sergeant? that question would launch a spellbinding mystery. you ve got a roommate, you got a boyfriend who she is maybe about to dump you got an ex-boyfriend who s suddenly back in her life. there were a number of potential suspects absolutely was a killer out there? she was in danger. reporter: could police catch him? they d hatch a plan of virtual genius. one of the detectives said you re not gonna believe this! i m lester holt and this is dateline. here s josh mankiewicz with mystery in orange county. reporter: orange county, california. on tv, it s a place of sun, fun, and privilege. it s where the real housewives first aired their dirty laundry. what is wrong? nothing s wrong with me, it s you reporter: it s where the kids from the oc showed us all what temperature cool really was. who is that? reporter: around here, you get th
but there s nothing to say what that was right. reporter: what had happened to this beautiful army sergeant? that question would launch a spellbinding mystery. you ve got a roommate, you got a boyfriend who she is maybe about to dump you got an ex-boyfriend who s suddenly back in her life. there were a number of potential suspects absolutely was a killer out there? she was in danger. reporter: could police catch him? they d hatch a plan of virtual genius. one of the detectives said you re not gonna believe this! i m lester holt and this is dateline. here s josh mankiewicz with mystery in orange county. reporter: orange county, california. on tv, it s a place of sun, fun, and privilege. it s where the real housewives first aired their dirty laundry. what is wrong? nothing s wrong with me, it s you reporter: it s where the kids from the oc showed us all what temperature cool really was. who is that? reporter: around here, you get the sense