I wouldn't rely on People magazine's wording as proof the anyone has been cleared. No one has been ruled out. Look at local coverage from that time. They report the family weren't "actively" considered suspects and had verified alibis, and that there were no active suspects. This isn't the same as anyone being "cleared." Even corroborated alibis don't rule out involvement in the crime (and I'm not making the accusation, stating it as a general reality).
As the Midlothian Mirror
quoted Assistant Police Chief Kevin Johnson saying,
At this point, with no firm suspect, everything is still on the table."
From the same newspaper article:
Bevers family, including her husband Brandon Bevers and father-in-law Randy Bevers, have provided detailed and verified alibis for the time of the murder, Johnson said, and are no longer actively considered suspects, though no one will be definitively ruled out until the case is solved.
Police were also open to the possibility that the suspect in the video wasn't working alone.