Tortious interference is a commonly misunderstood and applied claim. It requires 1) a valid business expectancy, 2) defendant’s knowledge of the expectancy, 3) intentional interference by the defendant inducing or causing a breach of the expectancy, 4) absence of justification, and 5) damages. Misischia v. St. John’s Mercy Med. Ctr., 30 S.W.3d 848, 863 (Mo. Ct….