. >> reporter: julie this is the church where 14-year-old diana lin johnson worshiped 30 years ago tonight the community came together to honor diana and to call for her killer to be arrested. three decades after diana lin johnson was killed her friends are still overcome with emotion. diana was last seen at a party down the street from her vacaville home 30 years ago from tonight. her beaten and strangled body was found the next day by some near by railroad tracks. one of her friends says she remembers the day like it was yesterday. >> i had never experienced this evil and i had no idea it existed. i probably stood this shivering in complete sadness for about an hour until i was able to get myself to leave the horrific murder scene. >> but friends also remember the good times. >> reporter: at the time vacaville was a small farming town where it seemed everyone knew everyone's business. many say the killer was at that party. >> we are very well aware who it is. he has bragged about it many a times. even here recently. >> why? why hasn't anything but done? why isn't anybody in jail? >> repo

. >> reporter: julie this is the church where 14-year-old diana lin johnson worshiped 30 years ago tonight the community came together to honor diana and to call for her killer to be arrested. three decades after diana lin johnson was killed her friends are still overcome with emotion. diana was last seen at a party down the street from her vacaville home 30 years ago from tonight. her beaten and strangled body was found the next day by some near by railroad tracks. one of her friends says she remembers the day like it was yesterday. >> i had never experienced this evil and i had no idea it existed. i probably stood this shivering in complete sadness for about an hour until i was able to get myself to leave the horrific murder scene. >> but friends also remember the good times. >> reporter: at the time vacaville was a small farming town where it seemed everyone knew everyone's business. many say the killer was at that party. >> we are very well aware who it is. he has bragged about it many a times. even here recently. >> why? why hasn't anything but done? why isn't anybody in jail? >> repo