"I watched my husband lure a gunman out of the house... he sacrificed his life to save me

The co-founder of the social network startup Plaxo allegedly shot and killed a former St. Louis Cardinals minor leaguer in a confrontation over his ex-wife.
Minh Nguyen, 38, was charged with first-degree murder in the domestic-related homicide of Corey Mattison on Thursday in Ashburn, Va., according to the Loudoun County Sheriff's Office.
Nguyen entered his ex-wife's home — who remarried just months earlier — and shot Mattison, police said. Nguyen's two children were in the home at the time of the 9:30 p.m. incident. Denise Mattison and another child walked in on the scene, police said.
"I watched my husband lure a gunman out of the house... he sacrificed his life to save me and to put an end to the emotional turmoil my children and I endured," Denise Mattison wrote on a Facebook memorial page set up for her husband. "My husband is the greatest man I'll ever know."
No one else was injured in the fatal confrontation and Nguyen surrendered to police without incident, police said.

FacebookCorey Mattison and wife Denise. Minh Nguyen, co-founder of Plaxo and Denise Mattison's ex-husband, is accused of killing Corey Mattison.

Nguyen, along with Sean Parker — of Napster and Facebook fame — helped found the online address book Plaxo in 2002. The George Mason graduate got his start as a programmer for AOL in the 1990s and has served as an adviser and mentor to several other startups.
Mattison pitched at N.C. State and for the New Jersey Cardinals of the New York-Penn League in 2001.
"Corey and his wife would go to a baseball game with the kids, and (Nguyen) would blow up," Rick Knutson, the owner of the glass construction company where he worked, told CNN Money. "He would try to prevent them from taking the kids anywhere. The guy seemed to be a little unstable."
Corey Mattison had two children from a previous marriage in addition to his new spouse's three kids.

Loudon County SheriffMinh Nguyen, 38, was charged with first-degree murder after the domestic-related homicide of Corey Mattison on Thursday in Ashburn, Va., according to the Loudoun County Sheriff’s Office.  

"I would have said this from the day I met him. He was already my hero," Denise Mattison wrote on Facebook. "He stepped in to something that no one else would have. He endured so much, because he wanted to rescue us...I have loved this man all my life...and will love him until the day I die."
Nguyen is being held without bail at Loudoun County Adult Detention Center.