LOS ANGELES — Kristen Stewart is worried her stardom might lead to someone logging on to a social networking site to find out her location and then traveling there to her whereabouts to kill her. The “Twilight” actress — who recently confessed to cheating on co-star Robert Pattinson with her ‘Snow White and the Huntsman' director Rupert Sanders — fears someone will log on to a social networking site to find out her location, then travel to where she is and murder her, femalesfirst.co.uk reported. In an extract from new e-book ‘Robert Pattinson, Kristen Stewart, Taylor Lautner — In Their Own Words' by Talia Soghomonian, she told interviewer Sian Edwards said: “Nowadays it's harder because everyone is on Facebook and everyone knows where you are all the time, and everyone's twittering. Like I'm going to die because somebody is going to say where I am and somebody is going to kill me. Someone's going to twitter my location and then it's going to be like, boom.” — Agencies