hijacking people

It was on monday morning. my mother came at home. she was late. There were some people who waited for her. They saw her coming from the bank after thaking some amount of money for use. The people were just waiting to hyjack her and take the money she had to take.
it was 10pm she had to come at home that time. my father came and entered that time and followed her. He found my mother when she was coming out of the bank.those people were hijackers and they saw a car passing and they saw they don't know.
 

Location: Kibera, NAIROBI, KENYA