The sister of deranged Dallas ICE sniper Joshua Jahn, who killed one migrant detainee and wounded two others Wednesday, has a long criminal history — including one charge that mirrors her brother’s rap sheet.
Kioko Jahn, 27, has been arrested three times in Collin County and is believed to have racked up numerous other run-ins with the law across Texas since 2017, according to online records.
Jahn was first cuffed on April 4, 2019, and charged with misdemeanor assault, an offense she seemingly pleaded guilty to seven months later in exchange for an unspecified probation term, court records show.
The Fairview resident was booked again on March 4, 2022, for marijuana possession — seven years after her brother was reportedly busted for the same charge. Her case was dismissed in August 2023.
The shooter’s sibling was hauled in the next day, on March 5, 2022, but later walked free on magistrate-set bond conditions, according to Collin County court records.
The Post did not immediately hear back from neighboring police departments.
Jahn’s brother blasted a barrage of bullets from a rooftop at a bus full of migrants being escorted by federal agents into the ICE field office in Dallas Wednesday morning, authorities said.
He killed one detainee and wounded two others, including a Mexican national, Mexico’s Foreign Affairs Ministry confirmed.
The gunman — a registered independent who voted in the Democratic primary in 2020 and last cast a ballot in 2024 — was found dead from a self-inflicted gunshot wound following the violent attack.
The words “ANTI ICE” were scrawled on a stripper clip of ammo found near his body, authorities said.
Police also discovered a blue Toyota Corolla — believed to be Joshua Jahn’s — with a tattered, printed-out map affixed to the right rear quarter panel, with text above it reading “Radioactive fallout from nuclear detonations have passed over these areas more than 2x since 1951.”
The image appears to be a map created by researcher Richard Miller, which shows areas of the US over which two or more radioactive clouds have crossed, resulting from nuclear testing in Nevada in the 1950s and 60s.
Wednesday’s vicious shooting is being investigated as a targeted attack on federal employees.
“I can confirm at this time that the FBI is investigating this incident as an act of targeted violence,” Joe Rothrock, special agent in charge of the FBI in Dallas, said at a press conference.
“It is unfortunately just the latest example we’ve seen of targeted violence, to include here in north Texas where back on July 4 we saw a coordinated attack against an immigration center in Alvarado.”
The attack is the third to target ICE or US Customs and Border Protection agents since July, coming as rhetoric from Democratic politicians against the agencies has ratcheted up.
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