Texas prosecutors could rest their case soon in Sarah Hartsfield’s insulin murder trial

We’re in the second week of the Sarah Hartsfield insulin murder trial, and jurors have heard testimony from over 30 witnesses so far.

Oct 8, 2025 - 10:00
Texas prosecutors could rest their case soon in Sarah Hartsfield’s insulin murder trial

We’re in the second week of the Sarah Hartsfield insulin murder trial, and jurors have heard testimony from over 30 witnesses so far.

Sarah is accused of killing her fifth husband, Joseph, by injecting him with insulin. Prosecutors have presented evidence to jurors throughout the trial, which consisted of text messages, voicemails, and written explanations that Sarah has sent to various people and media outlets over the years.

On Tuesday, jurors heard a bombshell day of testimony as the case’s lead investigator, Detective Skyler Rocz took the stand for more than six hours, delivering testimony about Sarah’s behavior after her husband was hospitalized, and also showing data from her cellphone that was pulled on the morning Joseph was found unconscious.

Rocz testified that cellphone data from Sarah Hartsfield’s phone contradicted her claim that she was asleep while her husband’s blood sugar was dropping dangerously low on the morning of Jan. 7, 2023. Investigators found that between 6 a.m. and 1 p.m., her phone recorded between 9 and 124 steps per hour, along with activity on banking, grocery, and social media apps, even though she told authorities she didn’t call for help until 2 p.m.

As the trial enters its eighth day, prosecutors could soon wrap up their case against Sarah. It’s still unclear whether Hartsfield will take the stand or if her defense team plans to call any witnesses. If not, the jury could receive its charge as early as Wednesday afternoon, followed by closing arguments.