This week on Texas Matters: Brent Brewer says he’s sorry for a murder he committed 33 years ago but says junk science is why he's on Texas Death Row.

Texas Matters: Why is Texas violent?

Texas is a big state with a growing, diverse population and as the population grows, the issues and challenges facing its residents multiply. Texas Matters is a statewide news program that spends half an hour each week looking at the issues and culture of Texas.