AUSTIN, Texas – Gov. Greg Abbott said the cellphone number of the Austin bombing suspect was of interest to law enforcement before he was captured on surveillance video at a FedEx store.

Abbott said authorities used cellphone traffic data to put Mark Anthony Conditt at the site of the explosions around Austin. He also said the suspect's phone number drew the attention of investigators.

The governor said that among the items Conditt purchased at a Home Depot were five signs saying "CAUTION CHILDREN AT PLAY."

Abbott said that he was told a tripwire that injured two men on Sunday in southwest Austin was tied to one of the signs, which would be consistent with what authorities have previously said about how the explosive was rigged.

FULL COVERAGE: Austin Bombings