Valdese, NC – WSOC-TV – A field of debris is all that is left after a house in the town of Valdese exploded. Investigators say a propane leak caused that blast.

Allen Thomas owned that house. He is a conditioning coach for the Chicago White Sox. He was in Baltimore for a game when a neighbor called to inform him about the explosion. Thomas spoke only to Eyewitness News, and said at first he thought his neighbor was joking.

Thomas said he lost hundreds of baseball cards, as well as years of sports memorabilia, but he says he is thankful that his family was with him and not home when the explosion happened.

The State Bureau of Investigation and the Burke County Fire Marshal are still trying to figure out how that propane leak started.