Complex sentence: Ria confronts Aryan about this, and he tells her that he did kill his father for the sake of his mother because his father was drunk and he would beat his mother everyday and one day from college he finds out that his mother had died.
Split into simpler sentences: Ria confronts Aryan about this, and he tells her that he did kill his father for the sake of his mother. His father used to drink and beat Aryan's mother everyday and one day from college he finds out that his mother had died.