Jane Sherriff has started a Facebook campaign called Bottle Stop. She already has more than a 150,000 people backing her crusade which calls on the government to stop late night city centre bars and clubs serving any drinks in glass bottles.
For more information visit the campaign's Facebook page.
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The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.
The Met Office has extended its weather warnings for snow and ice to cover vast swathes of the country, including London and the South East.