Emily GirschOct 11, 2017, 8:12 pmOct 12, 2017, 9:44 am

DNA evidence presented on Day 6 of NY/NJ bombing trial

A DNA forensics specialist told jurors that DNA matching Ahmad Rahimi's was found near the crime scenes

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Day six of the trial of Ahmad Khan Rahimi, the man accused of a series of bombings in New York and New Jersey in September 2016, focused on items found at the crime scenes containing Rahimi's DNA, as well as chemicals and fragments from the devices found at the scenes, and how they were created.

A DNA forensics specialist from the FBI explained that DNA matching Rahimi's was found on a cellphone collected at the 27th Street scene, and on a cellphone found at the Seaside Park crime scene.

A lighter collected from a backpack found near the Elizabeth train station also matched Rahimi's DNA.

Next, a chemist in the explosives unit at the FBI explained that two types of explosive materials, a substance known as HTMD and another substance known as Black Powder were found on various objects at the crime scenes.Those objects included pipes wrapped in duct tape and attached to fuses, which were found at Seaside Park. Pieces of plastic containing the same explosive materials were found at the crime scene at 23rd Street.

At Rahimi's home in Elizabeth, FBI agents found household items including a cold pack and a bag of Miracle Grow, both of which the chemist explained often contain the chemical ammonium nitrate, an ingredient used to make explosive materials.

Investigators also found a document on his laptop listing the ingredients needed to make the materials and a step-by-step guide with images, as well as a YouTube video he had searched explaining how to make them.

Later in the day, a bomb technician testified that the devices found at the 23rd Street crime scene, the 27th Street crime scene, Seaside Park and Elizabeth all met the criteria for improvised explosive devices, or homemade bombs. Each contained electrical fusing systems, cell phones used as switches, containers, including several pressure cookers, residue of explosive chemicals and also ball bearings used as fragmentation to inflict the maximum potential injuries.

Five of the IEDs that did not explode in Elizabeth were taken to a FBI lab in Quantico, Virginia to be disassembled and analyzed.

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