weapon fired possibly from a grassy knoll. i saw some police run up this grassy slope. i thought they re chasing a gunman. i ran with them. the report is that the attempted assassins we now hear was a man and a woman. i got to the top, looked around, and policeman went over the fence so i went over the fence, too. there was nothing there. a television news man said he looked up just after the shot was fired and saw a rifle being withdrawn from a fifth or sixth floor window. it was originally thought that the shots came from in here. now it s believed that the shots came from this building here. police officers running back toward the texas school book depository building. they are going to continue searching in that building for the would-be assassin of the president. central downtown dallas is in a virtual state of siege. they are combing the floors of the texas book depository building in an effort to find the suspected assassin. in the building on the sixth