Based on some biased articles it can be inferred Igor Lanis was some guy with prexisting mental issues who's wife acted like a bitch to him over a political disagreement, and he went berserk and killed her before getting killed by police. Rebecca Lanis used him having some alleged random interest in Qanon as an excuse to go regressive and slander the dissident right for causing her obviously mentally unstable dad to go berserk.
I am trying to find a more trustworthy source for information regarding this alleged incident.
None of this sounds at all familiar so the best I can do is give you an upvote.