This week, U.S. Immigration and Customs Enforcement (ICE) agents across the country arrested five foreign nationals—each convicted of heinous crimes ranging from child molestation to drug trafficking. In an era when border enforcement is under scrutiny, ICE continues to quietly remove violent offenders who never should have been in the country in the first place.
Here are five of worst of the worst:
Oluwaseun Kassim – Convicted rapist in Illinois
ICE Chicago arrested Nigerian national Oluwaseun Kassim (above), who was convicted in Kankakee County, Illinois of aggravated sexual abuse. According to court records, Kassim’s crime qualifies as a felony under Illinois law and carries a severe sentence. He remains in ICE custody pending removal proceedings.
ICE has prioritized Kassim’s case as part of its effort to target foreign nationals convicted of violent sexual crimes. “Convicted predators do not belong in our communities,” ICE said in a statement.
Alvaro De Jesus Martinez Juarez – Child sexual abuser in New York
Guatemalan national Alvaro Martinez Juarez was taken into custody by ICE Buffalo. He had previously been convicted in Nassau County, New York for child sexual abuse. ICE reported that Martinez Juarez had engaged in a sustained pattern of abuse, as evidenced by his charge of “course of sexual conduct against a child.”
Alvaro De Jesus Martines Juarez
⚖️Nassau County, N.Y., conviction | Child sexual abuse
🌎Guatemalan national
🔗Arrested by ICE Buffalo🤳Follow our page for details about criminal arrests by local field offices, removals and more. pic.twitter.com/A6BdWQKm41
— U.S. Immigration and Customs Enforcement (@ICEgov) June 25, 2025
The arrest occurred during a coordinated operation targeting criminal aliens with sex crime convictions. Martinez Juarez now awaits deportation.
Adalberto Guerrero-Alba – Mexican national guilty of kidnapping and sexual abuse
ICE New Orleans arrested Mexican citizen Adalberto Guerrero-Alba, whose criminal record includes aggravated kidnapping and sexual abuse of a child. ICE labeled Guerrero-Alba a “sexual predator,” and emphasized that his removal is a matter of public safety.
Officials stated clearly: “You will be found. You will be arrested. You will be deported.”
🚨SEXUAL PREDATOR ARRESTED: ICE New Orleans arrested Adalberto Guerrero-Alba, a citizen of Mexico. His criminal history includes:
💥Aggravated Kidnapping
💥Sexual Abuse of a Child📢Criminal illegal aliens: You will be found. You will be arrested. You will be deported. pic.twitter.com/LwFda7bhYL
— ICE New Orleans (@ERONewOrleans) June 21, 2025
Omar Abdelwase Ahmed Alaidrus – Fentanyl trafficker and SNAP fraudster
ICE Philadelphia apprehended Yemeni green card holder Omar Alaidrus, who abused his legal residency to run an illicit operation distributing fentanyl and committing food stamp fraud in New York. Alaidrus was sentenced to a year in prison and ordered to pay over $300,000 in restitution after defrauding taxpayers.
U.S. officials gave Yemeni national Omar Abdelwase Ahmed Alaidrus a green card Jan. 20, 2020, because he was under 21 & the unmarried child of a lawful permanent resident.
So what did he do with the opportunity?
💊He distributed FENTANYL in our country & committed FOOD STAMP… pic.twitter.com/9unKKLKR5J
— U.S. Immigration and Customs Enforcement (@ICEgov) June 25, 2025
ICE noted that lawful permanent residents who commit such serious crimes are still eligible for deportation: “His actions made him removable under the law.”
Marion Enrique Najar – Repeat child molester in Georgia
Honduran national Marion Enrique Najar was arrested by ICE Atlanta following his convictions in Gwinnett County, Georgia on two counts of child molestation. Najar’s case is particularly egregious, given the repeat nature of his crimes.
Marion Enrique Najar
⚖️Gwinnet County, Ga., convictions | Child molestation — 2 counts
🌎Honduran national
🔗Arrested by ICE Atlanta🤳Follow our page for details about criminal arrests by local field offices, removals and more. pic.twitter.com/2hOsRJuuAN
— U.S. Immigration and Customs Enforcement (@ICEgov) June 25, 2025
ICE emphasized that predators like Najar are top priorities for detention and deportation, stating that his removal would “immediately improve public safety.”