Co- workers of David Chandler, of Bridgnorth, would have "walked off the job" if they knew the gas was present.
Derek Whyteside, 42, died after being found unconscious in Telford on Monday.
Footage of a police raid at Ms Roberts' and Mr Rebelo's Harrow flat showed capsules being picked up.
Aethelflaed, a warrior ruler almost lost to history, is being celebrated on the 1,100th anniversary of her death
Number-crunching points to a serious gender split at the heart of Midlands politics
Sunderland begin their first campaign in England's third tier for more than 30 years with a lunchtime kick off at home to Charlton Athletic.
Manchester United keeper Dean Henderson joins Sheffield United on a season's loan following his loan at Shrewsbury.
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