4 guilty in modern slavery case in England LUTON, England, July 12 (UPI) -- Four members of a family of Irish Travelers were convicted Wednesday of keeping men as slaves at an English campsite. Tommy Connors Sr., 52; his son Patrick, 20; his daughter Josie John, 30; and his son-in-law, James John, 34, face as much as 14 years in prison each when they are sentenced, The Guardian reported. Sentencing was scheduled for Thursday in Luton Crown Court. The jury was unable to reach verdicts on three more Connors sons. During the 13-week trial, prosecutors presented evidence the family recruited men, many of them alcoholics or addicts, from homeless shelters and soup kitchens, promising them jobs with pay and good treatment. Instead, investigators said, they were kept in unheated sheds at a trailer park in Leighton Buzzard, Bedfordshire, and forced into unpaid work in the Connors paving business. The camp was raided in September after one man escaped. Police found 23 men living in squalid conditions. Investigators said one man had been there as long as 15 years. I didn't like it but they said I couldn't leave and said if I tried to leave ... I would get murdered," one of the men said in testimony played in court. Some of the men returned to the Connors family and refused to testify against them. Frances Oldham, the prosecuting lawyer, said the treatment meted out to the men met the standards of an anti-slavery law passed in 2010. "They were controlled in such a way that in many cases they could not see it," Oldham told the jury. They became conditioned ... the reason for their exploitation was money. They may not in the strict sense have been slaves, members of the jury, but the prosecution say this: they were not free men.