LATHROP — Law enforcement officials have arrested a second person in connection with a stabbing that occurred earlier this week in Tracy, authorities said.Lathrop Police Services arrested Christopher Liu, 22, on suspicion of attempted murder Friday, officials said. Detectives from the Tracy Police Department interviewed Liu and booked him into San Joaquin County Jail, where he is being held without bail, according to jail records.Timothy Herring, 25, was arrested [...]