According to the Virginian-Pilot article, which can be read by clicking this link,

A 10-hour standoff with an armed man in a car ended Monday morning when the man took his own life, police said.
The incident began just before midnight when a neighbor called police about a “dispute” on the 2300 block of West Great Neck Road, said Virginia Beach police spokeswoman Tonya Pierce.

The man, who was in his car alone, threatened to harm himself, she said.
Part of West Great Neck Road was closed during the standoff and residents in the area were notified of the situation through a reverse 911 call.