Complex sentence: In February 1915 Jean Vilbrun Guillaume Sam established a dictatorship, but in July, facing a new revolt, he massacred 167 political prisoners, all of whom were from elite families, and was lynched by a mob in Port-au-Prince.
Split into simpler sentences: In February 1915 Jean Vilbrun Guillaume Sam established a dictatorship, but in July, facing a new revolt, he massacred 167 political prisoners, all of whom were from elite families. Sam was then lynched by a mob in Port-au-Prince.