There are two degrees for murder charges in Texas.

The first degree, or capital offense , is when the accused intended to cause serious bodily injury that resulted in death or intended to commit a felony that resulted in death, while knowing that the act created a strong probability of death or serious bodily injury.
The second degree, also known as the regular offense, is when the accused did not intend to kill someone and acted without thinking or planning.
What is manslaughter?
Manslaughter is defined as an unlawful killing with malice aforethought that does not constitute murder because there is no intention to kill .