Why are majority of election violence coming from SS/SE.??

Why were majority of the election violence in 2011 came from the north?

With INEC being unable to prosecute election offenders in 2011,that act alone gave birth to what we are seeing now and it won't stop until INEC starts doing the needful.

PDP has been rejected in both Rivers and Abia but they always want to force themselves on the people.

Presidential Elections:
Kano State:
Reported violence by APC or PDP: NO
Reported Civilian Death:None
Reported Security personnel death: None
Result protested by any party: NO
Exit poll posted online: Yes
% turnout of eligible voters: 50.5%

Rivers State:
Reported violence by APC or PDP: Yes (APC and other parties)
Reported Civilian Death:several
Reported Security personnel death: several
Result protested by any party: all (except PDP)
Exit poll posted online: Never
% turnout of eligible voters: 80.1%

Gubernatorial Elections:
Kano State:
Reported violence by APC or PDP: NO
Reported Civilian Death:None
Reported Security personnel death: None
Result protested by any party: NO
Exit poll posted online: Yes
% turnout of eligible voters: <45.5%

Rivers State:
Reported violence by APC or PDP: Yes (APC and all other parties)
Reported Civilian Death:several
Reported Security personnel death: several
Result protested by any party: all (except PDP)
Exit poll posted online: None
% turnout of eligible voters: >83.1%

Compare and contrast for those of u who are asking why APC has refused to congratulate PDP in Rivers State

Do or die tedencies, aggressive nature and desperado.