It could still be weeks before the cause and manner of death are officially determined for the woman who died after a fight with a worker at Tim Hortons. WASHINGTON — Two weeks after a 75-year-old woman died following a fight with a Tim Hortons workerthe Indiana location where the incident unfolded remains closed for now. The investigation into the death of Anita Grayson is still ongoing, and it could still be weeks before the cause and manner of death are officially determined. This story continues below. After surveillance footage of the incident was shared by the…