Was Stanton a murder target?

[PaigeBooth]

Although O'Laughlen did show up at Stanton's home the night before Lincoln's murder, it is unlikely he was there to assassinate him. Mr. and Mrs. Stanton had a party at their home that evening, which meant people were gathered inside and outside their home mingling and watching firework displays. So assasinating Stanton would have been extremely difficult and escape impossible.