MODESTO -- An urgent cry from neighbor Roberto Arredondo was captured on cell phone video of a fire that consumed his neighbors' mobile home Tuesday night on Avenue D in Modesto.
On Wednesday, he and his family were still in disbelief, heartbroken.
"Hard just looking over there not seeing the home or the grandparents,” Arredondo said.
He says an elderly couple lived at the now destroyed mobile home with their two grandkids, a 6-year-old boy and a 10-year-old girl. He was home at the time, watching TV, when he heard a loud explosion.
"A big explosion that pretty much shook us off the couch,” Arredondo said.
He said he immediately walked outside to check on his neighbors, but what he found was their mobile home, engulfed in flames.
The Stanislaus County Sheriff’s Department is now investigating. They say four bodies were found -- two females and two males, but they have not determined the victims' identities.
"Our homicide sergeant believes that some different methods will be needed by the pathologist to help us identify the deceased people,” Sergeant Anthony Bejaran with the Stanislaus County Sheriff’s Department said.
They have also not released how the fire started, although Arredondo believes the flames may have ignited because of an accident.
"They were having issues with their electrical, I guess ... They had mentioned that throughout,” he said.
Families are shocked at the tragedy that unfolded here. They say, the neighborhood will never be the same, "What do you do in those situations?,” Arredondo asks.
He also says that the grandfather used to walk the grandkids out to the street to the bus stop. He says it will be hard to not see them anymore.
Autopsies have been scheduled for Monday.
If you have any information in this investigation call Detective Kamila Sulkowski at (209) 525-7032.
Stay with FOX40 for updates on this story.