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Two Missouri men have been charged with murder in a house bombing near St. Louis on Friday, killing four people – including three teenagers – who were collecting black market fireworks in a garage.

Terrell Cooks, 37, and Seneca Great, 43, each charged about 30 minutes north of St. Louis, three counts of second-degree murder in Friday’s blast near Black Jack, and several other charges. He was charged before the fourth victim died on Saturday.

Terrell Cooks and Seneca Great.

Terrell Cooks and Seneca Great.
(St. Louis County Police Department)

St. Louis County prosecutors say Cooks and Mahan made the fireworks and guided young people on how to load canisters and how to connect fuses for lighting. He used to sell firecrackers to others even though he did not have a license to make or sell them.

Investigators have identified him as Travel Eason, 16; Christopher Jones, 17; Damario Cooks, 18; And William Jones, 21.

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Friday’s powerful blast shook other homes and shattered neighbors’ windows. Authorities said a 12-year-old boy was also injured in the blast, but the St. Louis Post-Dispatch reported that police could not provide details Sunday on how many more were hospitalized.

In court documents, Cooks confessed that he and Mahan had made explosive devices designed to make loud and flashing flashes. After Friday’s blast, investigators saw Cook moving a box of chemicals used to make explosives in his vehicle, and when they searched the house and other vehicles attached to Cooks, they found a large quantity of “complete explosive weapons and components to make them.”

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Cooks and Martin have 350,000 in cash-only cash. It was not immediately clear if he had hired a lawyer to represent him.

The Associated Press contributed to this report.