New search warrants have widened the investigation into the break-in at the home of late NASCAR driver Greg Biffle, with detectives in Iredell County saying more than $30,000 in cash and two firearms were reportedly stolen from the Mooresville house back in January. The warrants also say hundreds of thousands of dollars were allegedly siphoned from Biffle’s family after their deaths in a plane crash last December.
Detectives believe the person seen on video during the burglary appeared to know the home’s layout and the location of its cameras, a detail that has pushed investigators to treat the burglary and the financial case as potentially connected. The search warrants reviewed by WBTV say bank accounts tied to the deceased family were compromised before the break-in, and that after Biffle and his wife, Cristina Grossu, died, suspicious activity began on their email and banking accounts.
The alleged account changes included new email addresses, phone numbers and passwords, along with fraudulent activity involving Grossu’s Venmo account. The affidavit also says bank account information was changed by phone, and that at least one fraudulent check was cashed from an account tied to Biffle’s business interests. Investigators said other attempts were made to compromise the accounts at multiple branches across state lines, reinforcing their belief that the case may involve multiple suspects in multiple states.
That theory leaves a sharper question hanging over the case: who inside the couple’s broader circle had enough access to help make the burglary and the financial activity look coordinated? The warrants describe several people in that inner circle, but no arrested or charged names had been disclosed as of Tuesday, April 28, and a sheriff’s office spokesperson said there is a person of interest in the case.
On April 23, law enforcement executed a search warrant at a home in Lincoln County and a business in Mooresville, but authorities said no items stolen from the Biffle residence were found. Several electronic devices were seized from the home in Denver, North Carolina, while no items were taken from the business. The Iredell County Sheriff’s Office is asking anyone with information about the break-in or the alleged bank fraud to contact investigators.