Victim's Family Speaks Out in Mysterious Arrowhead Stadium Death

Investigators looking for answers in Kyle Van Winkle's death during Kansas City Chief's game.
3:00 | 12/12/13

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Transcript for Victim's Family Speaks Out in Mysterious Arrowhead Stadium Death
We have an update on the mysterious death in the parking lot at a kansas city chiefs game this month. Linsey davis has the story. I wake up every day with the same nightmare. Reporter: It's not knowing what caused the death of her 30-year-old husband, seen here in home video, that makes it even more difficult for jennie van winkle to move on. Completely senseless. Reporter: Kansas city investigators are still looking for answers in kyle van winkle's mysterious death last week outside arrowhead stadium, during the kansas city chiefs game. Some of this may not be figured out. I certainly don't have the answers. Reporter: Van winkle's father, a police sergeant, was inside the stadium, while his son allegedly got into an unlocked jeep in the parking lot that resembled one that belonged to a relative. I was with him from start-to-finish that day at the tailgating. Most everybody in our group had some kind of drinks. If I had even thought kyle was a little past where I would have thought, just totally under control, he wouldn't have went to the restroom by himself. I would have followed him and went with him. Reporter: But van winkle never returned from the bathroom. Instead, police say they were called to the parking lot after the owner of a green jeep found a strange man inside his vehicle. Investigators say a struggle ensued. Van winkle collapsed. And the brand-new father of a 7-week-old son was pronounced dead at the hospital. My life, now, is a reality that I never thought I would ever have to be in. Reporter: Police have ruled van winkle's death a homicide. But no charges have been filed. They say it could be weeks before they know what killed him. Linsey davis, abc news, new york.

This transcript has been automatically generated and may not be 100% accurate.

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