In IRAC formation. What is the issue, analysis, and conclusion of this case?

Thomas McGrath was a partner in the law firm Tarbenson, Thatcher, McGrath, Treadwell & Schoonmaker. One day, at approximately 4:30 P.M., McGrath went to a restaurant-cocktail establishment in Kirkland, Washington. From that time until about 11:00 P.M., he imbibed considerable alcohol while socializing and discussing personal and firm-related business. After 11:00 P.M., McGrath did not discuss firm business but continued to socialize and drink until another bar patron, exchanged words. Shortly thereafter, the 2 encountered each other outside, and after another exchange, McGrath shot Hayes. Hayes sued McGrath and the law firm for damages.