*1151Yazan Aledamat (defendant) thrust the exposed blade of a box-cutter toward a man while threatening, "I'll kill you." A jury convicted him of assault with a deadly weapon and making criminal threats. Defendant argues that the assault conviction is invalid because the trial court wrongly instructed the jury that a "deadly weapon" includes an "inherently deadly" weapon when a box cutter is not an inherently deadly weapon as a matter of law. (See People v. McCoy (1944)
FACTS AND PROCEDURAL BACKGROUND
I. Facts
In October 2016, defendant approached a woman working at a lunch truck parked in downtown Los Angeles. He told her that he found her attractive and asked her for her phone number; she declined, explaining that she was married with children. On October 22, 2016, defendant approached the woman's husband, who owned the food truck. Defendant asked, "Where's *1152your wife?" Defendant then told the man that he wanted to "fuck" his wife because she was "very hot" and "had a big ass and all of that." When the man turned away to remove his apron, defendant pulled a box cutter out of his pocket and extended the blade; from three or four feet away, defendant thrust the blade at the man at waist level, saying "I'll kill you." Two nearby police officers on horses intervened and arrested defendant.
II. Procedural Background
The People charged defendant with (1) assault with a deadly weapon ( Pen. Code, § 245, subd. (a)(1) ),
The matter proceeded to a jury trial. When instructing the jury on assault with a deadly weapon and on the personal use enhancement, the trial court defined "a deadly weapon" as "any object, instrument, or weapon that is inherently deadly or one that is used in such a way that it is capable of causing or likely to cause death or great bodily injury."
During the prosecutor's initial closing argument, he told the jury that a "box cutter" was a "deadly weapon" because "[i]f [it is] used in a way to cause harm, it would cause harm." During his rebuttal argument, he asserted that the box-cutter was an "inherently deadly weapon" because "you wouldn't want your children playing with" it.
The jury returned guilty verdicts on both counts, and found the enhancement allegation to be true. After defendant admitted his prior conviction, the trial court sentenced defendant to 12 years in prison on the criminal threats count, comprised of a base sentence of six years (three years, doubled due to the prior strike), plus five years for the prior serious felony, plus one year for the personal use of a deadly weapon. The court imposed a concurrent, six-year sentence on the assault count, comprised of a base sentence of six years (three years, doubled due to the prior strike).
Defendant filed a timely notice of appeal.
DISCUSSION
For purposes of both assault with a deadly weapon and the enhancement for personal use of a deadly weapon, an object or instrument can be a *1153"deadly weapon" if it is either (1) "inherently deadly" (or "deadly per se" or a "deadly weapon[ ] as a matter of law") because it is " ' "dangerous or deadly" to others in the ordinary use for which [it is] designed,' " or (2) "used ... in a manner" "capable of" and "likely to produce [ ] death or great bodily injury," taking into account "the nature of the object, the manner in which it is used, and all other facts relevant to the issue." ( People v. Aguilar (1997)
Against the backdrop of this law, defendant argues that the trial court erred in instructing the jury that it could find the box cutter to be an "inherently deadly" weapon. Although the instruction the trial court gave is correct in the abstract ( People v. Velasquez (2012)
The remaining issue is whether this instructional error was prejudicial. This issue turns on whether the error involves the presentation of a legally invalid theory to the jury or the presentation of a factually invalid theory.
When an appellate court determines that a trial court has presented a jury with two theories supporting a conviction-one legally valid and one legally invalid *774-the conviction must be reversed "absent a basis in the record to find that the verdict was actually based on the valid ground." ( People v. Guiton (1993)
We conclude that the trial court's instruction defining a "dangerous weapon" to include an "inherently dangerous" object entails the presentation of a legally (rather than factually ) invalid theory. There was no failure of proof-that is, a failure to show through evidence that the box cutter is an "inherently dangerous" weapon. Instead, a box cutter cannot be an inherently deadly weapon "as a matter of law." ( McCoy , supra , 25 Cal.2d at p. 188,
Further, we must vacate the assault conviction because there is no basis in the record for concluding that the jury relied on the alternative definition of "deadly weapon" (that is, the definition looking to how a non-inherently dangerous weapon was actually used). ( People v. Smith (1998)
We recognize that the rules regarding prejudice that we apply in this case are arguably in tension with more recent cases, such as People v. Merritt (2017)
Defendant's convictions for assault with a deadly weapon, and the one-year enhancement for personal use of a deadly weapon applied to the criminal threats sentence, are vacated. Otherwise, the criminal threats conviction and sentence are affirmed. We remand to the trial court for the People to determine whether to retry the defendant on the vacated crime and enhancement.
We concur:
LUI, P. J.
ASHMANN-GERST, J.
All further statutory references are to the Penal Code unless otherwise indicated.
