CHAPEL HILL -- Many still wonder if it was a hate crime or a parking dispute that led to the shooting deaths of Deah Barakat, his wife Yusor Abu-Salha and her sister Razan.

Deah and Yusor were newlyweds and lived in the Finley Forest condo complex in Chapel Hill. Their neighbor, Craig Stephen Hicks, 46, is charged with each of their murders.

Chapel Hill police believe the shooting stemmed from an argument about parking. Neighbors say Hicks had a huge gripe against parking. They say he often complained to the Homeowners' Association. Barnes Towing says Hicks called so many times, the condo board told the company to call the board first before responding to Hicks' calls.

An unidentified friend also tells TWC News that Deah complained a neighbor warned him to never park in his parking spot and had a gun clipped to his side. That friend believes that neighbor was Hicks.

"He doesn't seem like a happy person," says one neighbor.

Whether or not parking is an issue at the complex is split between residents.

"I don't believe so. I've owned an apartment here for 15 years and has not been an issue," said neighbor Shadi Wehbe.

"Parking is a big issue here. There are assigned spots, but people don't really follow that," said another neighbor.

But the victims' families and many on social media aren't buying that theory, saying this was a hate crime. Hicks was very outspoken against many religions on his Facebook page. But many are quick to point out, his Facebook page shows not outward attitudes of hate and violence.

Authorities say they haven't ruled out the hate crime theory, but say everything is still open to investigation.