Collingwood had died in 1781 and the only witness of the massacre to appear at Westminster Hall was passenger Robert Stubbs .
A written affidavit by first mate James Kelsall was made available to the lawyers .
Collingwood had died in 1781 and the only witness of the massacre to appear at Westminster Hall was passenger Robert Stubbs , although a written affidavit by first mate James Kelsall was made available to the lawyers .