A search warrant affidavit in the stabbing deaths of a Broken Arrow couple and three of their children indicates last month's slayings may have been recorded on video.

The affidavit first obtained by the Tulsa World (http://bit.ly/1Psbx2Z ) says video cameras were in the home where 18-year-old Robert Bever and 16-year-old Michael Bever allegedly stabbed their parents and three siblings to death. The brothers have pleaded not guilty; both are charged as adults.

The affidavit says the cameras were near the three victims and appeared connected to one or more of the computers taken from the home.

The affidavit did not say whether the cameras were activated, but did say "live footage recordings" could be found on a thumb drive taken from the home.

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Information from: Tulsa World, http://www.tulsaworld.com