Update the text to be cohesive:
A briefcase believed to belong to Godard was found on 8 August 2003 in Saint-Brieuc Bay. Investigators have never confirmed its authenticity, and it is likely that it was a hoax.
A briefcase believed to belong to Godard was found on 8 August 2003 in Saint-Brieuc Bay. However, investigators have never confirmed its authenticity, and it is likely that it was a hoax.