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. 
Who was Michael Brown?
What happened to him?
Was Darren Wilson a cop?
Where is Wilson now?
Where does he live?
Do his neighbors know where he is?
How have they handled the publicity?
What kind of ongoing investigations are there?
How old is Wilson?
Why did he shoot Michael Brown?
How did local people react to this?
What were they hoping to accomplish with the protests?
Have any of his neighbors spoken to press?
What did they tell CNN?
When did Wilson buy the house?
When was that?
Did he receive death threats?
What do the signs in the neighbors yards say?
Is Wilson active online?
What  town was Brown shot in?
unarmed black teen
As the St. Louis suburb of Ferguson calmed Friday after nights of protests over the fatal shooting of an unarmed black teen
Darren Wilson shot Michael Brown
Darren Wilson, 28, shot Michael Brown
Yes
Officer Darren Wilson
Few outside Wilson's family and authorities know for sure.
Few outside Wilson's family and authorities know for sure.
about 20 miles from Ferguson
Wilson owns a house in a modest neighborhood about 20 miles from Ferguson
No
Most have shunned reporters' requests for interviews, and some put signs in their yards shooing away journalists. 
Most have shunned reporters' requests for interviews, and some put signs in their yards shooing away journalists
Most have shunned reporters' requests for interviews, and some put signs in their yards shooing away journalists
federal and local investigations
Separate federal and local investigations are under way, and Wilson -- who has received death threats -- has disappeared from public view. 
28
Officer Darren Wilson, 28
unknown
unknown
The shooting sparked days of violent protests
The shooting sparked days of violent protests
his arrest
residents demanded his arrest
Most have not
Most have shunned reporters' requests for interviews
that Wilson left home
that Wilson left home before his name was released last week. 

shortly after he was divorced
He bought the house shortly after he was divorced last year
unknown
unknown
Yes
Wilson -- who has received death threats -- has disappeared from public view. 

We have 2 children. Do not knock

"We have 2 children. Do not knock!! No comment," another family wrote. 
no
The newspaper reported that Wilson deactivated his social media accounts before his name went public. 

Ferguson
As the St. Louis suburb of Ferguson calmed Friday after nights of protests over the fatal shooting of an unarmed black teen