Alaina Mercer Case: Motive, Murder, and Sentencing

The Alaina Mercer case is the 2014 murder of Nancy Lynne Mercer, a longtime Washington, D.C. nurse, by her daughter Alaina Mercer and Alaina’s wife, Christina Diana Brown, the night before a custody hearing over Alaina’s young daughter. Both women pleaded guilty in Spotsylvania Circuit Court to being an accessory before the fact to first-degree murder, and in 2016 each was sentenced to 60 years in prison with 15 years suspended.¹

Why Nancy Mercer Was Killed

Nancy Lynne Mercer, known to family as Lynne, worked as a nurse at MedStar Washington Hospital Center and lived in the Thornburg area of Spotsylvania County, Virginia. She had six children.² For about five years, she let Alaina and Christina Brown live in her home rent-free, then evicted the couple in 2012.³

On June 23, 2012, Nancy filed for a protective order against both women. In her petition she wrote that Alaina had “assaulted me in the past, has hit me and pushed me while she is living at my home,” and that Brown had threatened to “torch the place.”⁴ She also described Alaina as having a history of bipolar disorder, post-traumatic stress disorder, and dissociative identity disorder, and as someone who “becomes violent unpredictably when angry.”⁵ The order was granted and remained in effect through July 2014.

The trigger for the killing was a custody fight over Alaina’s young daughter. On April 8, 2014, a court granted Nancy Mercer custody of the child. Alaina, Brown, and Brown’s family reportedly staged an angry protest against the ruling at that hearing, and Brown allegedly threatened the court, court personnel, and Nancy.⁵ A follow-up hearing was set for Monday, May 19, 2014, at which a neighbor said Nancy was expected to receive full custody.³ She never made it to court.

The Murder

On the evening of May 18, 2014, the night before the hearing, Nancy Mercer failed to show up for her 7 p.m. nursing shift. Coworkers called the Spotsylvania County Sheriff’s Office. Deputies sent for a welfare check found her shot to death inside her home on Eastridge Way.³ She had been shot four times, twice in the back and twice at point-blank range.⁵

The front door was unlocked and the house looked ransacked, but Detective Leonard Short later testified that nothing was actually missing and the break-in scene appeared staged.⁵ The active protective order and the pending custody hearing pointed investigators straight at Alaina Mercer and Christina Brown.

How Brown Got the Gun

The protective order Nancy had obtained in 2012 explicitly barred Brown from buying a firearm. Brown got a 9mm handgun anyway by purchasing it through a private sale rather than a federally licensed dealer, which meant no background check flagged the order. Captain Jeff Pearce of the Spotsylvania County Sheriff’s Department confirmed the private transaction allowed Brown to bypass the check.³

A February 2015 Washington Post editorial pointed to Virginia’s failure to bar domestic abusers subject to protective orders from possessing firearms, noting that a bill to close the gap had stalled in the state Senate.⁶ Virginia did not enact significant reforms until 2016 and 2020, when the General Assembly made it a felony for people subject to final protective orders to possess firearms and set up procedures for firearm surrender.⁷

Arrests, Charges, and Conflicting Accounts

Both women, then 25, were arrested on the evening of May 30, 2014, nearly two weeks after the killing.⁸ They were held without bond at the Rappahannock Regional Jail and appeared in court on June 2, 2014. Alaina was initially charged with first-degree murder and conspiracy to commit murder. Brown was charged with conspiracy to commit murder and with purchasing a firearm while subject to a protective order.³ Captain Pearce told reporters that “it appears at least from evidence that the killing was conspiratory in nature.”

In the days between the murder and the arrests, the father of Alaina’s child and one of Alaina’s sisters filed their own protective orders against her. The sister wrote that Alaina “is a suspect in my mother’s murder and has tried to forcibly take her daughter from my home even though I have custody now of the child.”⁴

Both women eventually pleaded guilty to being an accessory before the fact to first-degree murder. Under her plea deal, Alaina testified against Brown and identified Brown as the shooter. Brown blamed Alaina. Investigators recovered the 9mm handgun and tied it to both women, but the conflicting accounts meant neither was convicted as the principal shooter.⁹

Sentencing

At the final sentencing hearing on June 2, 2016, members of Nancy Mercer’s family described her as the “backbone of the entire family” and called the killing “cold-blooded” and “ruthless.” The youngest child, Elise Mercer, told the defendants that “God will judge you in the end. After that, there will be a special place in Hell for you.” The family urged Judge Sarah Deneke to impose life sentences.⁹ At an earlier hearing on March 15, 2016, Nancy’s younger sister Jennifer Aguirre had already addressed Alaina directly, saying: “The entire family is left with an empty hole because of your actions. Who knew we had such monsters in the family?”¹⁰

Alaina Mercer told the court she was “hurting” and that her family had “turned on” her. She denied being a “monster” but admitted she had known about the plan to kill her mother and done nothing to stop it.⁹

State sentencing guidelines called for roughly 22 to just under 40 years. Judge Deneke went higher, sentencing both Alaina Mercer and Christina Brown to 60 years in prison with 15 years suspended, and said she considered both women equally responsible for the murder.¹

1
Roanoke Times. Mercer and Brown Sentenced to 60 Years
2
The Washington Post. Woman, 25, Arrested in Slaying of Mother, a Nurse at MedStar Washington Hospital Center
3
CBS News. Virginia Woman Murdered; Daughter and Her Partner Accused
4
WJLA. Nancy Mercer: Daughter Charged in Murder of Spotsylvania Nurse Mother
5
Fredericksburg.com. Details of Mercer Murder Case
6
The Washington Post. Virginia’s Lethal Loophole
7
Giffords Law Center. Domestic Violence and Firearms in Virginia
8
NBC Washington. Daughter, One Other Arrested in Death of DC Nurse
9
Fredericksburg.com. Family: Daughter Who Killed Mom Deserves Special Place in Hell
10
Fredericksburg.com. Mercer Sentencing Hearing