TMZ says Los Angeles police officers now have a working theory on how 90's R&B star Charmayne Maxwell died in a freak accident last week.
Maxwell's husband found her bleeding out on the floor in their LA home Friday after she apparently tripped and fell while holding wine glass. She was pronounced dead en route to Cedars Sinai hospital.
Law enforcement sources tell us detectives combed the scene where the ex-Brownstone singer fell on Friday evening — and say all evidence points to her falling backward at the doorway between the house and the back patio ... while holding a wine glass.
We're told during the fall ... the wine glass shattered on the ground behind Maxwell's head, and when she landed shards of glass punctured the back of her neck in two places. We're told there was an injury to the back of her head, and it's possible she was knocked unconscious.
A toxicology test is reportedly pending.