(snip)Las Vegas police said Serge Fournier, 74, heard 25-year-old Cadesha Bishop swearing at people on the bus they were riding — and witnesses said Fournier told her to "be nicer to passengers," KSNV-TV reported.
(snip)Police said Bishop then pushed Fournier, who was using a walker, out of the bus — and he landed on his head on the sidewalk, the station said.
Bishop was jailed and faces a charge for open murder on an elderly vulnerable person, KSNV-TV said in a follow-up story.