St. Louis County prosecutors say 37-year-old Terrell Cooks and 43-year-old Seneca Mahan made fireworks and instructed the younger ones to fill the canisters and attach a safety light. They then sold the fireworks to others. Neither Cooks nor Mahan were allowed to make or sell fireworks. The Cooks and Mahan each have three counts of second-degree murder and several other charges for Friday’s blast near the town of Black Jack. Charges were issued before the fourth victim died on Saturday. The victims of the powerful explosion that shook other houses and burst the windows of the neighbors were identified as Travell Eason, 16 years old. Christopher Jones, 17; Damario Cooks, 18; and William Jones, 21. Authorities said a 12-year-old boy was also injured in the blast, but St. The Louis Post-Dispatch reported that police were unable to provide details Sunday on how many more are still being treated. Cooks and Martin are being held on $ 350,000 bail. The court’s online records do not yet list the cases, so it is not clear if the men have lawyers who could comment on the allegations. Court documents state that Cooks admitted that he and Mahan had made explosive devices designed to make a loud bang and a flash of light. Investigators saw Cooks move boxes of chemicals used to make explosives in his vehicle after Friday’s explosion and found large quantities of “complete explosive weapons and accessories for their construction” when they searched a home and other vehicles associated with them. Cooks.