Testimony is under way in the trial of a Jefferson County woman accused of beating her husband to death. Fifty-five-year-old Susan DeJong is charged with first-degree murder in the death of 52-year-old Thomas DeJong at their home west of Fairbury in March 2011. County Attorney Linda Bauer told jurors Tuesday that Susan DeJong was obsessed with suspicions that her husband was having an affair. The trial in Fairbury is expected to last through the week.