(October 18, 2018, 12:05 PM EDT) -- RALEIGH, N.C. — A man convicted of murder cannot challenge the admissibility of a firearm expert’s unqualified opinion at trial because his own attorney elicited the expert’s opinion on cross-examination, a North Carolina Court of Appeals panel held Oct. 16 in dismissing the man’s appeal (North Carolina v. Craig Deonte Hairston, No. COA17-1357, N.C. App., 2018 N.C. App. LEXIS 1030)....