Authorities in Tarrant County have arrested six men in connection with a wave of sex crimes with potential prison sentences stretching from a few years to life.

The Dallas Express compiled a catalog of some of the worst alleged offenders apprehended by authorities in Tarrant County in the last month.

Note: These men have been arrested for certain alleged crimes; they have not been convicted. The American legal system dictates that they are innocent until proven guilty in a court of law.

1. CARTER-HICKMON, KEEVON D ANGELO
Arrested: 05/06/2025

Charges:

  • Aggravated Sexual Assault of a Child

  • Online Solicitation of a Minor (2 counts)

  • Possession of Child Pornography

  • Possession With Intent to Promote Child Pornography

  • Sexual Performance by a Child Under 14 (Produce/Direct/Promote)

  • Trafficking a Child to Engage in Sexual Conduct

Carter-Hickmon faces the harshest potential sentence among the six. The aggravated assault charge alone often carries a 25-year sentence, depending on the circumstances. The two solicitation counts can carry up to 20 years each. Possession of child pornography could add 10 years or more, with additional penalties for the intent to promote charge. The performance-related charge brings another possible 20 years, while trafficking could lead to life.

Total exposure: Up to multiple life sentences

2. KANKEY, JACOB EDWARD
Arrested: 05/20/2025


Charges:

  • Aggravated Sexual Assault of a Child

  • Possession of Child Pornography

  • Sexual Performance of a Child Under 14 (Employ/Induce/Authorize)

Kankey is looking at serious time if convicted. The assault charge alone could land him behind bars for 25 years to life. Possession of child pornography may add another 10 years, and the performance charge could tack on 20.

Total exposure: Up to 55 years, with one charge eligible for life.

3. DARDEN, DARRELL BERNARD
Arrested: 05/20/2025


Charges:

  • Continuous Sexual Abuse of a Child Under 14

Texas law classifies this as one of its most serious felonies, requiring a mandatory minimum of 25 years without the possibility of parole and an upper limit of life in prison.

Total exposure: 25 years to life, non-parolable.

4. MAHMOOD, NASIR
Arrested: 05/15/2025


Charges:

  • Aggravated Sexual Assault of a Child

With only one charge listed, Mahmood’s case is still severe. Texas law mandates 25 years to life for this offense, and there is no early release.

Total exposure: 25 years to life.

5. AINGER, MARK ROBERT
Arrested: 05/20/2025


Charges:

  • Sexual Assault

Although not involving a child, sexual assault is a second-degree felony in Texas, typically punishable by 2 to 20 years in prison. Aggravating circumstances could push the sentencing higher, but none have been detailed at this stage.

Total exposure: Up to 20 years.

6. SIMS, TERRY MICHAEL
Arrested: 05/15/2025


Charges:

  • Sex Offender’s Duty to Register With Previous Conviction

Failing to register is a felony in Texas, especially for a repeat offender. Depending on prior convictions and compliance history, penalties range from 2 to 10 years in prison.

Total exposure: Up to 10 years.