The four former Minneapolis police officers charged in the killing of George Floyd could face a jury trial in March, as a judge warned the men to avoid speaking publicly about the case during a hearing on Monday.Three ex-officers appeared in-person at a Hennepin County court in Minnesota, while Derek Chauvin – who was captured on witness video kneeling on Mr Floyd's neck – attended the hearing remotely via video conference from Ramsey County Correctional Centre, where he is being held on a $1.25 million bail.