NASCAR star Greg Biffle's North Carolina home burglary probed as possible inside job

Key Points:

• The burglary of late NASCAR driver Greg Biffle's North Carolina home is being investigated as a possible inside job, following suspicious activity shortly after Biffle and his family died in a plane crash on Dec. 18.
• The break-in occurred on the night of Jan. 7-8, with the suspect accessing a safe and stealing $30,000 in cash, two handguns, NASCAR memorabilia, and a backpack; surveillance footage shows a woman known to the family moving through the house with apparent knowledge of its layout and security cameras.
• Investigators have linked the burglary suspect to earlier suspicious activity, including unauthorized access and fraudulent transactions on the family's email and bank accounts that resulted in the theft of hundreds of thousands of dollars.
• Search warrants executed in April led to the seizure of electronic devices but no stolen items, and the investigation now spans multiple states and involves several potential suspects, though no charges have been made public.
• The cause of the Dec. 18 plane crash that killed Biffle, his wife, and two children remains under investigation, with authorities noting erratic changes in the aircraft's speed and altitude before the crash.