Depraved-heart murder
I don't see anything in this law referencing "not wanting to scare people"
https://en.wikipedia.org/wiki/Depraved-heart_murder
In United States law, depraved-heart murder, also known as depraved-indifference murder, is a type of murder where an individual acts with a "depraved indifference" to human life and where such act results in a death, despite that individual not explicitly intending to kill. In a depraved-heart murder, defendants commit an act even though they know their act runs an unusually high risk of causing death or serious bodily harm to a person. If the risk of death or bodily harm is great enough, ignoring it demonstrates a "depraved indifference" to human life and the resulting death is considered to have been committed with malice aforethought.[1][2] In some states, depraved-heart killings constitute second-degree murder,[3] while in others, the act would be charged with varying degrees of manslaughter[4] or third-degree murder.
If no death results, such an act would generally constitute reckless endangerment (sometimes known as "culpable negligence" and possibly other crimes, such as assault).