Assault with a mens rea of negligence, with no element that the victim is a minor, and where the judicially noticeable record of conviction does not indicate minority of the victim, should not be considered a crime involving moral turpitude. Washington Assault in the Third Degree, a Class C felony, has two subsections that may be committed negligently. See Matter of Perez-Contreras 20 I&N Dec 615 (BIA 1992). A negligent assault is also not a crime of violence aggravated felony. See Leocal v. Ashcroft 543 US 1 (2004).
Thanks to Jonathan Moore.