They chose to use the term unlikely. However, as has been seen in many other cases, the unlikely can very much materialise.
Real experts are (in my opinion!)
notoriously reluctant to commit themselves to any damn thing.
In the trial of Ian Huntley, the prosecution wheeled in an expert to comment on Huntley's claim that the two girls he murdered, Jessica and Holly, had actually met their fate in Huntley's bathroom; one girl having tripped, fallen into a bath Huntley had run to wash his dog and drowned; the other suffocating while Huntley held his hand over her mouth to stop her screaming.
The expert witness did a pretty expert job of demolishing this scenario as 'unlikely'.
But at the end, asked if he thought Huntley's scenario
impossible, he replied
no.
Huntley was convicted on a majority verdict.
Perhaps one juror felt Huntley should be accorded 'benefit of the doubt'?
True experts for you!
Drives me mad.