At least 26 people were killed Sunday after Devin Patrick Kelley, 26, opened fire on a group of churchgoers inside the First Baptist Church in Sutherland Spring, Texas.

The attack was the deadliest church shooting in modern U.S. history and the deadliest shooting in state history.

In light of the event, here’s what you need to know about Texas gun laws.

Texas gun law 101
Gun critics argue that Texas gun laws are relatively lax. But Justin Sparks, a Firearms Program Attorney through the Texas Law Shield, a legal defense fund, told Fox News on Monday that “Texas is probably the middle of the pack,” adding that “there’s not a lot of prohibiting, but there is a lot of supervising.”