LOUISVILLE, Ky (WDRB) -- Louisville Metro Police believe they know what caused a crash and fire that killed three people on I-64 earlier this month.

After a little more than a week investigating, officials now believe the accidents happened because of two distracted drivers. Police also know what caused one of the cars to catch on fire.

"They have a pretty good account of how it happened, and it makes sense," said Paul Fetter, who is the victims' uncle.

Fetter and his family now know everything about this accident that killed three of his family members April 9.

After talking to LMPD on Monday, there are really no surprises, but Fetter says it hurts.

"We kind of knew what to expect."

It happened on I-64 West, just after the Hurstbourne Parkway exit. Samantha Owens, her 9-year-old sister, Lauren, and 2-month old son, Liam, died in the crash.

Officer Raymond Sutherland with LMPD's Traffic Unit is the lead investigator in the case and walked WDRB through what happened and how the victims' car caught on fire. He said it started with Owens' boyfriend, who was behind the wheel.

"The driver says he is having some type of discussion with the girlfriend, and in the process of looking away from the front, he strikes the Toyota in the rear," Officer Sutherland said.

That did not do much damage, but a short time later, the victims' car was struck by another vehicle.

"He got out of the car, he goes running over to the white Hyundai, he already sees that it's already starting to have flames ... So he opens the door, he pulls the driver out," Sutherland said.

Officer Sutherland believes the victims' gas tank was squeezed and leaking after impact.

"And then now you've got all of these sparks ... which is the igniter."

The details are painful, but Fetter is even more disturbed by knowing distracted driving likely caused all of this.

"It's almost hard to comprehend that you had two accidents occur that close together ... for the exact same reason."

This coming Sunday, Texas Roadhouse in Clarksville will donate 10 percent of its proceeds to the family of the victims.

2 sisters and a baby among the victims in Saturday's fatal crash on I-64 West

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