Who was to blame for the death of reconstruction?

Both but more to the South. 

How the North killed the reconstruction.
- The North gave up on the South
- The North stopped trying
- They become too involved with their own problems

How the South killed the reconstruction.
- The South rebelled against the North
- The South refused to accept any changes made.
- Any steps are taken to move forward with reconstruction the South would be rejected.

The South is more to blame.
-No matter what the North tried, the South would refuse to make any changes.-They killed many innocent lives.-They put in more effort in fighting and resisting reconstruction.

To win elections

Explanation:

This is NOT a usual reason for terrorist attacks.

They DO however: want people to live in fear,

want to call attention to their cause,

want their opponents to give in to their demands,

use terror in order to obtain political goals,

and use innocent people to be victims of their attacks in order to cause more fear.