WEST PALM BEACH, Fla. – The trial for a woman accused of dressing as a clown and fatally shooting her lover’s wife in Florida in 1990 has been pushed back again, this time because of court disruptions created by the coronavirus pandemic.Palm Beach County Circuit Judge Joseph Marx on Thursday scheduled the first-degree murder trial of Sheila Keen-Warren, 56, to begin April 9, 2021, according to court records.