Firstly let me start by saying my thoughts are with Dr Shola Mos-Shogbamimu and her family at this time.
I'm no fan of Dr Shola Mos-Shogbamimu and tend to disagree with most of her thoughts but we are in a country of free speech and opinion and I respect her opinions and beliefs.
The majority of us use social media etc to communicate with the wider world, this can mean derogatory comments and threats, such are normally from individuals hiding behind a fake IP address or email - hence untraceable.
The line is drawn when threats are made and in particular in the manner made to Dr Shola Mos-Shogbamimu and her family.
My understanding is that the Metropolitan Police are investigating and we must all hope that the perpetrators are arrested and held accountable.