Detective Inspector Kev Broadhead from Nottinghamshire Police said:
"“Formal identification has yet to be confirmed, but at this stage we do believe we have found Elizabeth.
"It’s a tragic conclusion to the inquiry and one we were all desperately hoping we would not have to face."
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Krissoni Henderson called his victim a non-believer and a prostitute before branding police "disgusting" atheists.
They were taken as a precaution, and residents are being advised to keep windows and doors closed as teams continue to clear the spill.
Footage released shows the moment the two carriages collided in what’s been described as ‘the equivalent of a family car crashing at 90mph’