Complex sentence: As a child, Chikatilo was constantly berated by his mother; his sister later recalled that in spite of the hardships endured by her parents, her father, Roman, was a kind individual, whereas her mother was harsh and rude towards her children.
Split into simpler sentences: As a child, Chikatilo was constantly berated by his mother. His sister later recalled that in spite of the hardships endured by her parents, her father, Roman, was a kind man, whereas her mother was harsh and unforgiving toward her children.