JESSIE PANG FAMILY members of some of the 12 Hong Kong people arrested by China at sea in August said on Thursday they have received their first letters from them, but they were suspicious of the praise for how well they have been treated in prison. The 12 were arrested as they tried to flee by boat to Taiwan, with most of them suspected of crimes related to last year's often-violent pro-democracy protests, and have since been detained in the neighbouring Chinese mainland city of Shenzhen. In a joint statement, families of seven of the detainees said their lawyers, chosen…