An East Texas teenager has been charged with attempting to hold up a taxicab in May. Longview Police say 18-year-old Zachary Bryan Christopher, of Tatum, was one of two young men who demanded money from a taxi driver at gunpoint. The driver said he drove away without giving any money and that both suspects ran away. Christopher’s bond was set at $101,000. The other suspect, 17-year-old Keon Thomas, was arrested in July and is being held on $105,000 bond.