. >> i've always tried to do the best i could do, whether it was punching john wayne or henry fonda or brian keith or jimmy wonderful men i worked with. >> osgood: o'hara's family says she died in her sleep at her boise, idaho, home. maureen o'hara was 95. jack the ripper. >> osgood: a foggy night. jack the rip we're have craved. even as we prepare for the artificial frights of halloween, investigating the real terror that gripped london. lee cowan has been watching them at work. alleys of london's east end... a booming business lurks in the dark. >> jack the ripper tour, guys. >> reporter: this isn't just for halloween. this macabre gathering happens nightly-- a band of the curious following in the very footsteps of london's victorian villain, jack the ripper. >> if anybody sees a guy with a top hat with a big mustache and a knife, about 180 years old, just ignore him. ( chuckles ) busy. think it is? >> i think it's the mystery. it's the environment he did it in-- the gas lamps and the cobbles, and the victorian london, the top hats, this kind of thing. >> reporter: mick priestly is o