On the morning of May 1, 1990, at around 10:10 PM, Pamela Smart was pulling onto her street to the condo she shared with her husband, Gregg. When she noticed the porch light wasn't on, she sensed something was amiss. After parking her car in the garage, Pamela walked inside and turned on the foyer light. What she saw next shocked her to the core. She saw her twenty-four-year-old husband's body, lying in a pool of his own blood.

SOURCES: 
1) Inside The Brutal Murder Of Greggory Smart At The Hands Of His Wife’s Underage Lover
2) Sex, Lies & Murder: The Pamela Smart Case
3) How Pamela Smart Conspired With Her Teen Lover To Kill Her Husband
4) Billy Flynn Today: Where Is Pamela Smart’s Teen Lover Now?
5) New Hampshire Journal; A Small-Town Drama Of Life, Love and Death