auto parts store parking lot in south florida. the key break in the case came on thursday when investigators traced five packages to a mail processing center outside miami. >> each device consisted of roughly six inches of pvc pipe, a small clock, a battery, some wiring and what is known as ennet jet particular material, which is essentially potential explosives that we're still analyzing the devices in our laboratory, these are not hoax devices. >> in 2002 sayoc was threatening to bomb a utility company saying it would be worse than september 11th. in 2014 he admitted in a deposition that he was arrested for calling in a bomb threat. and in 2015 sayoc was arrested and later convicted of theft. the 56-year-old will be in court on monday. guys, back to you. rachel: thank you, todd. >> yeah. we are learning more details about what this guy intentions were. how many bombs there were.