▁of ▁Laura ' s ▁ch auff eur ▁and ▁lo ver ▁( play ed ▁by ▁Edward ▁J . ▁P aw ley ), ▁Urs ula ▁tries ▁to ▁kill ▁Laura ' s ▁young ▁son , ▁Bobby , ▁with ▁both ▁t aint ed ▁c andy ▁and ▁an ▁explos ive ▁rub ber ▁ball , ▁but ▁is ▁th wart ed . ▁Urs ula ▁follows ▁Laura ▁and ▁Bobby ▁as ▁they ▁fle e ▁B ever ly ▁Hills ▁by ▁train , ▁una ware ▁that ▁police ▁ser ge ant ▁Barry ▁C live ▁( R ic ardo ▁Cor te z ) ▁is ▁esc ort ing ▁them . ▁After ▁confront ing ▁Laura , ▁and ▁apparently ▁hyp not izing ▁her ▁into ▁falling ▁as leep , ▁Urs ula ▁enters ▁Bobby ' s ▁room ▁and ▁is ▁caught ▁by ▁C live . ▁She ▁then ▁fle es ▁to ▁the ▁back ▁of ▁the ▁train ▁and ▁j umps ▁to ▁her ▁own ▁death . ▁ ▁In ▁this ▁film , ▁actor ▁Edward ▁J . ▁P aw ley ▁received ▁his ▁first ▁screen ▁kiss ▁( from ▁My r na ▁Lo y ). ▁He ▁would ▁go ▁on ▁to ▁appear ▁in ▁over ▁ 5 0 ▁mov ies ▁during ▁his ▁ 1 0 - year ▁career ▁in ▁Hollywood , ▁playing ▁mostly ▁" bad ▁gu y " ▁roles ▁with ▁some ▁of ▁Hollywood ' s ▁greatest ▁actors . ▁ ▁Cast ▁ ▁I rene ▁Dun ne ▁as ▁Laura ▁Stan ho pe ▁ ▁Ric ardo ▁Cor te z ▁as ▁Police ▁Serge ant ▁Barry ▁C live ▁ ▁J ill ▁Es mond ▁as ▁Jo ▁Turner ▁ ▁My r na ▁Lo y ▁as ▁Urs ula ▁Georg