Arlington County investigated the 1968 incident and blamed the accident on insufficient wooden shoring to hold up concrete being poured to form the floor above it.

Fairfax County hired Professor Ingvar Schousboe of the University of Illinois Urbana-Champaign, a civil engineer, to investigate the cause of the collapse.

[11] George Taylor, a workman for Northwest Sheet Metal, Inc., claimed that workmen were pulling concrete supports "out too fast.

[3] The concrete subcontractor at the Skyline Plaza condominium complex, Miller & Long's vice president Roger Gilbert Arnold was indicted on manslaughter charges for the deaths of Danny Ray White, Clemons Riley Holcomb, and Daniel R. Wilhite.

Arnold was charged because, as the senior Miller and Long official present he was responsible for the actions of the men who removed the shoring.

[12][11] Miller & Long was fined $300 for failing to use adequate shoring beneath newly poured concrete floors.

It was ruled by a judge that the building's owner, the Charles E. Smith Co., could not be held criminally responsible for the actions of its subcontractors.