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Brian Cole: DC pipe bomb suspect bought materials from Walmart, Home Depot; details emerge

FBI affidavit show Brian Cole Jr. bought bomb-making materials from major retailers

Published on: Dec 5, 2025, 07:58:47 IST
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According to a detailed affidavit filed by the Federal Bureau of Investigation (FBI), investigators traced several purchases by Brian Cole Jr. that match the components used in the pipe bombs placed outside the RNC and DNC headquarters on January 5, 2021.

An FBI poster is displayed during a press conference following the arrest in the D.C. pipe bomber investigation, December 4, 2025. REUTERS/Jessica Koscielniak (REUTERS)
An FBI poster is displayed during a press conference following the arrest in the D.C. pipe bomber investigation, December 4, 2025. REUTERS/Jessica Koscielniak (REUTERS)

Here's all he bought and needed for the bomb.

Read more: Brian Cole Jr: DC pipe bomb suspect's mom, Delicia, trolled on social media

What were the bombs made of?

Cole bought items such as galvanized steel pipes, end caps, nine-volt battery connectors and kitchen timers were reportedly bought at retail chains Home Depot and Walmart.

According to the FBI affidavit filed in federal court, the explosive devices were constructed using a combination of commercially available hardware-store components, many of which investigators say were purchased by Brian Cole in the months and years before January 6.

The pipe bodies

Investigators reported that both devices used 1” x 8” galvanized steel pipes manufactured by a specific pipe producer, the name of which is not revealed in the document.

Purchase records cited in the affidavit show Cole bought six galvanized pipes of identical size and product labeling pattern from multiple Home Depot stores in northern Virginia on June 1, June 8 and November 16, 2020.

End Caps

The bomber used a mix of black and galvanized end caps to seal the pipes. These are also from the same manufacturer.

The affidavit states Cole purchased 12 black end caps and 2 galvanized end caps on four separate trips to Home Depot between 2019 and 2020. In total, over 233,000 black end caps and 179,200 galvanized end caps of that type were distributed nationwide that year, the majority sold through Home Depot.

Battery connectors and wiring

The bombs contained a 9-volt battery connector with attached red and black wires, which investigators traced to a known distributor dubbed the “Nine Volt Distributor.”

The FBI says Cole purchased five battery connectors from a Micro Center store in northern Virginia around November 12 and December 28, 2019. Fewer than 8,000 of that distributor’s connectors were sold in the U.S. between 2017 and January 2021.

Kitchen timers and initiators

Both pipe bombs used a white kitchen-style mechanical timer as the triggering mechanism. According to the affidavit, Cole purchased two identical white kitchen timers from a Walmart in northern Virginia on June 3, 2020.

The uncommon combination of these items in the bomb led the investigators to examine retail purchase records, which ultimately linked back to Cole’s debit card activity captured in store transaction logs.

Read more: Brian Cole Jr: DC bomber's Nike Air shoes, cell location and car led to arrest

The phone location was traced near the bomb area

Cell-Tower data reveals Cole's phone connected to towers in the vicinity of the RNC and DNC between 7:39 p.m. and 8:24 p.m. that evening. The report reveals that this is the time window in which the bombs were planted in the RNC and DNC.

The affidavit states that Cole’s car, a 2017 Nissan Sentra, was captured on camera leaving Interstate 395 South near the Capitol at about 7:10 p.m., less than a mile from the eventual bomb locations.

  • Shirin Gupta
    ABOUT THE AUTHOR
    Shirin Gupta

    Shirin Gupta is a content producer with the Hindustan Times. She covers everything between politics, entertainment and sports at the US desk. Shirin got interested in political journalism during her time as a web editor at her college newspaper NCC News in Syracuse when she first started seeing the effects of national politics in life of her fellow colleagues. Shirin has worked on a wide range of fast-moving and developing stories locally when she was at NCC editing accessible reports for the audience. Her current role requires her to track real-time updates, verify information and present balanced coverage across diverse beats. Covering US politics from an international newsroom perspective has further deepened her understanding of how domestic decisions can have far-reaching global consequences. With a keen interest in international affairs, Shirin continues to build her expertise in geopolitics, policy shifts, and cross-border developments. She aims to learn and evolve her reporting in matters of geopolitics and international issues. Outside the newsroom Shirin writes about books and music for her personal blog. She is an avid consumer of pop culture and reveres literature.Read More

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