STATEN ISLAND, N.Y. -- Law enforcement sources have identified the man police believe stabbed his wife in Willowbrook, then took a fatal leap off the Verrazano-Narrows Bridge early Sunday morning.

The man, identified by sources as Brian Helfer, 47, died after jumping from the upper level of the span's Brooklyn-bound side at about 8:43 a.m.

His wife, identified by sources as Ana Helfer, 51, remained in critical condition at Staten Island University Hospital Ocean Breeze, a hospital spokesman said Sunday night.

Around 8:36 a.m., police received a 911 call of a stabbing at 70 Croft Place in Willowbrook. Once there, police discovered a 51-year-old woman in bed with two stab wounds to her torso, according to law enforcement sources.

Three children, ages 9, 14 and 15, were inside the home when police arrived, authorities said, and one of the children made the initial 911 call. None of the children were injured, police said.

Police could not immediately say what time the stabbing occurred.

The husband then fled the home driving the same 2013 gray Hyundai Genesis that TBTA found unoccupied on the Verrazano-Narrows Bridge later that hour, cops said.

Both husband and wife were arrested on misdemeanor assault charges in a 2007 domestic violence incident, a law enforcement source said, though the resolution of that case was not immediately known Sunday night.

-- Advance staff writer Ryan Lavis contributed to this report.