Arlington police have secured a murder warrant for a man already serving time in prison, officially charging him in the 2021 fatal shooting of Kier Solomon, a 21-year-old transgender woman. This significant development, resulting from a multi-year investigation focused on digital evidence, charges Arthur Morris Jr., 25, with murder. He also faces a charge of aggravated robbery related to a separate incident.
Key Investigative Findings
Ms. Solomon was discovered deceased in her running vehicle on September 30, 2021, at a North Arlington apartment complex. Investigators quickly recovered her phone, which indicated she had been arranging a meeting with an unidentified individual through a messaging application. The number used to communicate with her was temporary and generated by the app.
A major break in the case occurred in September 2025. Detectives established a pattern of activity by linking this incident to a similar aggravated robbery that happened two weeks prior at the same location, also involving contact via the same messaging app. Multiple search warrants ultimately connected an email address and cell phone number to Arthur Morris Jr., who was already incarcerated for an unrelated aggravated robbery. Records confirm Morris’s cell phone was at the crime scene before, during, and after Ms. Solomon’s death.
Next Steps for the Suspect
Morris is currently held by the Texas Department of Criminal Justice. He will be transferred to Tarrant County to face arraignment on the new murder charge, as well as the additional aggravated robbery charge tied to the earlier incident.
