Two people are now in custody after reportedly trying to take parts of the Porche Carrera GT that crashed on 30 November, killing Paul and his friend Roger Rodas.
The Los Angeles police have said an teenager was arrested and another suspect handed himself in after they were caught thieving from the vehicle as it was being towed away from the scene of the crash.
County sheriff's officials have reported that Jameson Witty, 18, was arrested at his LA home, and is being held on bail, while 25-year-old man whose name has not been released, turned himself in.
Father-of-one Paul, 40, tragically died while travelling as a passenger in his friend's sports car when it collided into a lamp post in Valencia, north of LA.
Witnesses describe the car as being engulfed in flames and the pair died on the scene.
"It is with a truly heavy heart that we must confirm that Paul Walker passed away today in a tragic car accident while attending a charity event for his organization Reach Out Worldwide," read a statement from the actor's representatives.
"He was a passenger in a friend's car, in which both lost their lives. We appreciate your patience as we too are stunned and saddened beyond belief by this news.
"Thank you for keeping his family and friends in your prayers during this very difficult time. We will do our best to keep you apprised on where to send condolences. - #TeamPW."
Paul has left behind his 15-year-old daughter Meadow and his girlfriend of seven years Jasmine Pilchard-Gosnell.