So I have a lexis Nexis subscription. I did a little bit of legal research on home defense precedent in Arkansas.
First of all:
"The defense of justification, including the use of deadly physical force, is statutorily based in Arkansas. Ark. Code Ann. § 5-2-607(a) (Repl. 2006). This chapter defines a "dwelling" as "an enclosed space that is used or intended to be used as a human habitation, home, or residence on a temporary or permanent basis[.]" Ark. Code Ann. § 5-2-601(3) (Repl. 2006). Arkansas case law supports the conclusion that unenclosed porches are not considered to be part of a dwelling for the defense of justification. Anderson v. State, 353 Ark. 384, 108 S.W.3d 592 (2003), citing Hopes v. State, 294 Ark. 319, 742 S.W.2d 561 (1988)"
Johnson v. State, No. CR 06-993, 2007 Ark. LEXIS 250, at *6 (Apr. 12, 2007)
In the picture Boogie clearly steps out of his house with the gun. Even if he had shot Frank he would be fucked. It also does not help that shooting a warning shot is material proof that Boogie didn't actually think he was in danger of death of serious harm.
Secondly Arkansas does not appear to have a "Negligent discharge of a firearm" statute. They only have "Negligent discharge of a firearm from a vehicle" and "negligent discharge of a firearm while hunting." There was bill to add it in 2007 that was withdrawn. That being said there could still be a municipal statute that criminalizes it. Unfortunately despite looking into the Fayetteville city website I could not find any relevant code. However Simultaneous ownership of guns and drugs is a charge, although I suppose it technically isn't boogie's gun.