TMZ is reporting that Chris Guerra — the paparazzo killed while trying to get a shot of Justin Bieber — was stalking the Bieb and lied about seeing him smoking marijuana while driving.

The site has multiple sources who say there’s no way Guerra could have seen Justin with a hash pipe on the freeway, because the only time he left his hotel that day was to go out to lunch in Hollywood. TMZ also claims that “well-connected sources” have said that Guerra “made Justin’s life hell…following and chasing him at every opportunity.”

Guerra was also lying, apparently, when he said that Selena Gomez’s car was parked at Justin’s hotel on New Year’s Eve. The two had a blow-out fight on Sunday in Mexico and haven’t been seen together since.

According to TMZ, Bieber didn’t like Guerra, but out of respect for the family, is reluctant to throw these details out there himself.