Complex sentence: While at his apartment in Jackson, Fromme, 26, asked Boro for a gun, giving the reason that she needed a gun for her own protection in the apartment house where she lived with two roommates due to enemies of Charles Manson.
Split into simpler sentences: While at his apartment in Jackson, Fromme asked Boro for a gun. From told Boro that she needed one for her protection in the apartment house where she lived, with two roommates, due to enemies of Charles Manson.