David Foster Clark, 61, died July, 19, 2012, at his home.
He was born in Boston and moved to Sebastian two years ago, coming from Avon, Mass.
He was a veteran of the National Guard before opening his own armed security company.
He was a member of the NRA.
Survivors include his brother, Dennis Clark, of Saco, Maine; daughters, Kerri Clark, of Vero Beach, and Stephanie Clark of Sebastian; sons, Scott Clark, of Coral Springs, and Jonathan Clark and David Clark, of Sebastian; and nine grandchildren.
Memorial contributions may be made to the American Diabetes Association at www.diabetes.org.
The family has planned a private memorial service for July 24.
Arrangements are by Seawinds Funeral Home and Crematory in Sebastian.
A guestbook is available at www.seawindsfh.com.