The sister of the gunman who opened fire on a US Immigration and Customs Enforcement (ICE) facility in Dallas this week has a long history of run-ins with the law.
Court records show that 27-year-old Kioko Jahn, the younger sister of shooter Joshua Jahn, has faced multiple arrests over the past six years.
Kioko’s criminal record
Collin County court documents reveal Kioko has been arrested at least three times since 2017. In April 2019, she was charged with misdemeanor assault. Seven months later, she pleaded guilty and received probation.
Later in 2022, she was arrested for marijuana possession, an offense that mirrored her brother’s earlier drug case. That charge was later dismissed in August 2023.
Just one day after the marijuana arrest, Kioko was taken into custody again. She was later released under magistrate-set bond conditions. Beyond Collin County, she is believed to have had additional legal troubles elsewhere in Texas, though not all records are public.
Who was Joshua Jahn?
Her brother, 29-year-old Joshua Jahn, carried out a violent attack on Wednesday morning outside the Dallas ICE field office. Armed with a rifle, he opened fire from a rooftop at a bus carrying migrant detainees.
One detainee was killed, and two others, including a Mexican national, were critically injured. Jahn then shot himself, and his body was discovered near the facility. Investigators found ammunition marked with the words “ANTI-ICE” beside him.
Jahn’s family background
The Jahn siblings’ repeated clashes with the law have raised questions about their upbringing and possible influences. Kioko’s arrests, especially the drug charge that is similar to her brother’s, point to a pattern of legal troubles in the family.
Authorities are now looking into Joshua’s past and whether his sister’s own problems had any connection to his growing hostility toward law enforcement and federal immigration authorities.
Officials have not yet determined a clear motive behind the attack. Federal agents are reviewing Joshua’s personal and political history, he had voted in the Democratic primary in 2020 and again in 2024, while also examining his family ties.