As tens of thousands of tributes poured in from across the nation for the PC Fiona Bone and PC Nicola Hughes, more than one Facebook page was set up in praise of the suspect held by police.
One was titled Dale Cregan OBE, with internet "trolls" posting messages claiming the suspected killer was a "hero".
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The former England cricketer reportedly suggested he would have a better chance of being knighted if he "blacked up".
Heavy thundery rain for parts of Northern Ireland and Scotland
Four men are being interrogated in Spain's National Court over the vehicle attacks that killed 15 people and wounded more than 120 others.