Whilst most employees had gone home at this point, Randy Pitchford was still at work, and the bomb squad moved to the Gearbox HQ with the aim to 'dispose a car bomb' in the parking lot owned by Gearbox.
Whilst the disposal unit refused to give full details as to why they had been caught out, Randy Pitchford mentioned that he did not call the bomb squad, and he was unsure why such a problem escalated in the first place.
The most likely thing to have happened was that an individual decided to call the police to inform them of a car bomb in the Gearbox parking lot in an attempt to "prank" the company - it's a tactic that many streamers, Youtubers and companies involved in the gaming industry have had to deal with.
Whilst it's unlikely a car bomb was ever present at Gearbox HQ, it's important for the bomb disposal unit to react appropriately to such calls, and it's unfortunate that certain individuals have the gut to waste a large amount of resources and time to "prank" targeted companies or streamers that may be in the spotlight.
Gearbox has recently been working hard to release their new game, Borderlands the Pre-Sequel, and the game has been set for release on October 14th this year in the United States.