Hong Kong police have arrested a 34-year-old man in connection with the installation of three suspected pinhole cameras found in changing rooms at a gym in Sha Tin.The arrest on Sunday came a day after police launched an investigation into a suspected voyeurism case at the 24/7 Fitness branch on Lek Yuen Street.A police spokesman said officers arrested the suspect, a local man, in Sha Tin and he remained in custody as investigations continued.Officers were alerted on Friday after a suspected...