Brian Mulligan’s widow Jemma Mulligan said he drank alcohol occasionally, but she did not know he used cocaine. She was giving her testimony via Zoom yesterday in the No. 4 Supreme Court in the murder trial of Michael Oneal Beckles, 62, of 1st Avenue Maxwell Coast Road, Christ Church, who has denied killing the 28-year-old Englishman on June 15, 2014. Jemma, who is in Ashtead, Epson, Surrey, England, said her …