The explosion happened just before 8:30 a.m. on Monday, Jan. 9, 2012 at Ferrovecchio's home on Payne Avenue.
Fire investigators ruled an accidental natural gas leak as the cause of the explosion.
At the time of Ferrovecchio's death, he had an 8-year-old son. He had only been living in his home for about a year.
Ferrovecchio first called Texas Gas Service on Nov. 25, 2011 to report the smell of gas. Neighbors said the gas company came out and looked around, but the gas service could not find a leak and promised to investigate further.
Texas Gas Service later said it enforced the gas main along Payne Avenue, sliding new polyethlyene inside the existing cast iron.
Firefighters said a gas leak could have easily ignited with the flip of a light switch or a cell phone call. Once it lit, they had to let it burn out on its own.
The Texas Railroad Commission issued new rules in March 2012 requiring all gas companies to not only inspect their gas pipelines, but to set a schedule to replace high-risk pipes.
Neighbors worried about the safety of their homes after the explosion.
Experts say pipes like the ones at Ferrovecchio's home can be extremely dangerous.
The explosion that killed Ferrovecchio at his home happened six weeks after he first reported smelling gas to Texas Gas Service.
The company told the KVUE Defenders it planned to remove all 32 miles of cast iron pipe in Austin by the end of 2014.
Officials say if you smell gas in your home, leave your home, do not turn on appliances, and call 911.
The latest Defenders investigation revealed that while that aging infrastructure is being removed across Austin, 85,000 miles of aging pipes remain across the country.
On Jan. 9, 2012, 43-year-old Renald Ferrovecchio was killed when his North Austin home burst into flames.