From the given information can you tell who committed the crime? | Answer

After a local art theft, six suspects were being interviewed.
Below is a summary of their statements.
Police know that exactly four of them told one lie each and all of the other statements are true.
From this information can you tell who committed the crime?

Alex said:
It wasn't Blake
It wasn't Drew
It wasn't Emery

Blake said:
It wasn't Alex
It wasn't Chris
It wasn't Emery

Chris said:
It wasn't Blake
It wasn't Frankie
It wasn't Emery

Drew said:
It wasn't Alex
It wasn't Frankie
It wasn't Chris

Emery said:
It wasn't Chris
It wasn't Drew
It wasn't Frankie

Frankie said:
It wasn't Chris
It wasn't Drew
It wasn't Alex

ANSWER

It was Chris who committed the crime. Because the statement "It wasn't Chris" is repeated exactly 4 times among them.