That is because Engels presented things much worse than they actually were so as to prove a point and spread his ideology. Of course that a little bias was necessary for that since it had to motivate people that they had it worse than they really had it.
Answer: m Anders Behring Breivik
The killings in a youth summer camp in the island of Otoya were carried out by Anders Behring Breivik, a 32-year-old Norwegian. Breivik was also the offender who dressed as a policeman and bombed a government building in central Oslo.
To get money and be able to hire more workers