Ferguson, Missouri (CNN) -- As the St. Louis suburb of Ferguson calmed Friday after nights of protests over the fatal shooting of an unarmed black teen, the question remains: Where's the police officer who pulled the trigger? 

Officer Darren Wilson, 28, shot Michael Brown on August 9. The shooting sparked days of violent protests in Ferguson as residents demanded his arrest. 

Separate federal and local investigations are under way, and Wilson -- who has received death threats -- has disappeared from public view. 

Governor orders drawdown of National Guard in Ferguson 

Here's what is known about his whereabouts. 

Where is he now? 

Few outside Wilson's family and authorities know for sure. 

Wilson owns a house in a modest neighborhood about 20 miles from Ferguson. He bought the house shortly after he was divorced last year, according to the St. Louis Post-Dispatch. 

But several neighbors have told CNN that Wilson left home before his name was released last week. 

What are his neighbors saying about his whereabouts? 

Not much. Most have shunned reporters' requests for interviews, and some put signs in their yards shooing away journalists. 

"We don't know anything ... Pray for Peace," one read, according to the Post-Dispatch. 

"We have 2 children. Do not knock!! No comment," another family wrote. 

Any trails on social media? 

The newspaper reported that Wilson deactivated his social media accounts before his name went public. 

The only social media presence for him now is from supporters, who have set up Facebook pages to support and raise money for him.  QUESTIONS:

Q1:
1. Who was Michael Brown?
2. 
3. 
Q2:
1. What happened to Michael Brown?
2. What happened to the teen, Michael Brown?
3. 
Q3:
1. Was Darren Wilson a police officer?
2. Was Darren Wilson a cop?
3. Was Darren Wilson a member of the police force?
Q4:
1. Where is Darren Wilson now?
2. What is Darren Wilson's location currently?
3. 
Q5:
1. Where does Darren Wilson live?
2. Where is Darren Wilson's house?
3. 
Q6:
1. Do Darren Wilson's neighbors know where he is?
2. Do Darren Wilson's neighbors know about his whereabouts?
3. Are Darren Wilson's neighbors aware of his current location?
Q7:
1. How have Darren Wilson's neighbors handled the publicity?
2. How are Darren Wilson's neighbors dealing with the media attention?
3. What are Darren Wilson's neighbors doing to deal with n=the new-found publicity?
Q8:
1. What investigations are going on regarding Darren Wilson?
2. What kind of open investigations are there around the Darren Wilson case?
3. What type of ongoing investigations are there concerning the Darren Wilson incident?
Q9:
1. How old is Darren Wilson?
2. What is Darren Wilson's age?
3. 
Q10:
1. Why did Darren Wilson shoot Michael Brown?
2. Why was Michael Brown killed by Darren Wilson?
3. Why did officer Darren Wilson shoot Michael Brown?
Q11:
1. How did locals react to Darren Wilson shooting Michael Brown?
2. How did the public react to Michael Brown's shooting?
3. How did local people react to Michael Brown's death?
Q12:
1. What did the poeple protesting Michael Brown's shooting hope to achieve from it?
2. What did the public hope to achieve from their protests about the shooting of the unarmed teen, Michael Brown?
3. By protesting the murder of Michael Brown, what did the public hope to accomplish?
Q13:
1. Have any of Darren Wilson's neighbors spoken to the press?
2. Have Darren Wilson's neighbors spoken to the media?
3. Have any of Darren Wilson's neighbors given interviews with the media?
Q14:
1. What did Darren Wilson's neighbors tell CNN?
2. What did CNN learn about Darren Wilson from his neighbors?
3. What information did Darren Wilson's neighbors give to CNN?
Q15:
1. When did Darren Wilson buy his house?
2. When did Darren Wilson buy the house he had been staying at before the incident?
3. 
Q16:
1. When did Darren Wilson buy his house?
2. 
3. 
Q17:
1. Did Darren Wilson receive death threats?
2. Did Darren Wilson receive any death threats because of his involvement in Michael Brown's death?
3. 
Q18:
1. What do the signs in Darren Wilson's neighbors' yards say?
2. What signs have Darren Wilson's neighbors put up?
3. What do the signs that the neighbors of Darren Wilson put in their yards say?
Q19:
1. Is Darren Wilson active on social media?
2. Is Darren Wilson online?
3. Is Darren Wilson active on the internet?
Q20:
1. What town was Michael Brown shot in?
2. Where did Darren Wilson shoot Michael Brown?
3. In what town did Michael Brown's shooting take place?
