The Storm Lake Police Department says four Laurens residents were charged Wednesday in connection with an ongoing investigation into the manufacture of methamphetamine. Three suspects, Daryl Dehart, Christine Dooling, and Janette Schmitz, are already being held in the Pocahontas County Jail after being arrested on March 29 during a similar investigation. They were charged with Conspiracy to Manufacture over 5 grams of meth and Possession of Precursors. In addition, 34 year-old Gabriel Moreno was arrested in Tulsa, OK on the same charges. Officials allege Moreno fled the area prior to the execution of the March 29 search warrants. All four suspects are being held on $100,000 bond awaiting return to the Buena Vista County Jail.