Here's a short story:

(CNN) -- The editor in chief of a newspaper in Benghazi, Libya, was shot and killed Monday morning, the latest in a recent campaign of killings across the city. 

Muftah Buzeid was also a prominent analyst who frequently appeared on TV talk shows speaking out against Islamist extremism. His last such appearance was Sunday night. 

Many Libyans are outraged over the killing, which is likely to add to the support for renegade Gen. Khalifa Haftar and his campaign against terrorism. 

The deaths have mainly targeted security forces but also activists, journalists and judges. 

The city has been almost emptied of Westerners as diplomatic missions shut after the 2012 attack on the U.S. Consulate that killed American Ambassador Christopher Stevens and three other Americans. 

Officials and many residents blame the violence on Islamist extremist groups that have grown in size and influence since the 2011 revolution that overthrew longtime dictator Moammar Gadhafi. 

A weak central government has not been able to secure Benghazi or bring the perpetrators of the near-daily attacks to justice. 

Ten days ago, Haftar launched a surprise ground and air assault on Islamist militia positions and bases in Benghazi, including attacks on Ansar al-Sharia, the group blamed in the U.S. Consulate attack. 

 (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: Who was killed?
Guess: Muftah Buzeid

Question: What was his profession?
Guess: editor in chief

Question: in what?
Guess: Benghazi

Question: When he was killed?
Guess: Monday morning

Question: Were there other killings in recent time?
Guess: yes

Question: Are people happy about these?
Guess: no

Question: Who will be benefited with these?
Guess: Gen. Khalifa Haftar

Question: In what effort?
Guess: his campaign against terrorism

Question: Who are the usual targets?
Guess: security forces

Question: Who others are also affected?
Guess: activists, journalists and judges

Question: Who the officials blame for all these?
Guess: Islamist extremist groups

Question: Are they becoming stronger?
Guess: yes

Now answer the following question in the same format.

Question: Since when?

2011