Liverpool mayor Steve Rotheram says the police’s decision to divulge information about the suspect’s ethnicity is a sign that social media can be a “cesspit”.He reacted to the arrest of a 53-year-old white British male following a horror car ramming incident during Liverpool FC’s Premier League parade celebrations.Reacting to the incident, Rotheram hit out at people “nefariously” sharing untrue information online.“I didn’t want that speculation to cause any concern and it was the right decision taken by Merseyside Police to put that information out”, he said.