In Texas, murder applies when the person
Intentionally or knowingly cause the death of another person [or] Intend to cause serious bodily injury and commit an act clearly dangerous to human life that results in death
While manslaughter means
if they recklessly cause the death of another person. Unlike murder, manslaughter does not require intent to kill or cause serious injury. It focuses on reckless behavior that creates a substantial and unjustifiable risk of death.
Sure reads like those charges should bump from manslaughter to murder.
Yeah, that's how convection and radiation work. Do I notice it? No. Do I care? No. It's hot as balls with or without the neighbors house next door, I'll be running fans and the a/c regardless.
If you're asking for the engineering of it all, you're looking for study materials from Heat Transfer courses, keywords: convection, radiation, R-value.