A Pennsylvania man was sentenced to a maximum of nearly two years in jail after plea bargaining in the fatal stabbing of a next-door neighbor who threatened to kill him over the sound of his snoring. Christopher Casey, 56, used a large, military-style knife to kill Robert Wallace, 62, following a series of arguments between the men, who shared a common wall between their bedrooms in a duplex apartment complex in Hatboro, a suburb north of Philadelphia. Casey, who lived alone, was eating dinner on Jan. 14 when Wallace knocked on a ground floor window and yelled that he was going to kill Casey, …