GWINNETT COUNTY, Ga. -- A large water main break shut down part of Buford Highway and impacted water service to at least one school, as well as several other customers in the area.

The break happened in the area of Buford Highway and Woods Creek Lane in Suwanee. Gwinnett Water Management said a 10-inch main broke. The cause was not immediately known.

Roberts Elementary School did not have water service Tuesday morning. Gwinnett County Schools spokeswoman Sloan Roach said classes were not canceled. Instead, water trucks were brought to the school, and students were given bottled water.

Gwinnett County spokeswoman Heather Sawyer said water service was restored late Tuesday morning, and a temporary repair to the break is expected to be in place by 5 p.m. No boil water advisory was issued.

ATLANTA (WXIA) -- Investigators continue to try to pinpoint what drove a man allegedly to shoot and kill his wife and her two young sons in their Forsyth County home Wednesday morning.

And no one is more heartbroken than the witness who may have been the last person outside the home to see the boys alive.

It was the evening before they were murdered. She called 911 when she saw the boys in the front yard as their mother and her husband were screaming at each other in a violent confrontation.

What did not happen next haunts her.