1. Joseph Wood has been convicted for killing his former girlfriend and her father in 1989.

2. The total payment for the killing and disposal of the body was to be $20,000.

3. The IRA did not admit the killing until 1998.

4. Arias was convicted of killing her former boyfriend Travis Alexander in 2008.

5. Violence has spiked in Iraq since April, when the pace of killing reached levels unseen since 2008.

6. The most recent spate of violence has been the worst in years, killing some 50 people since July 8.

7. Holmes is accused of killing 12 people on July 20th.

8. In December 2015, the same market was targeted by a suicide bomber, killing 22.

9. It sank in 12 minutes, killing about 300.

10. Marathon in 2013, killing three and wounding over 200.

11. MS-13 gang members are suspected of killing at least 30 people on Long Island since 2010.