GAINESVILLE, Fla. -

The teenager charged in connection with the disappearance of a University of Florida student bought duct tape and a shovel several days before that student went missing, said police in Gainesville.

Pedro Bravo is charged with Depriving a Victim of Medical Care, a third-degree felony. The charge stems from the disappearance of Christian Aguilar, who was last seen Thursday. Bravo is being held on a $100,000 bond.

According to police in Gainesville, Bravo bought the shovel a few days before Aguilar disappeared. Police also released a stock photo of the shovel.

Gainesville Police Officer Ben Tobias said the last signal from Aguilar's cellphone was at 8:14 p.m. Thursday. The cellphone hasn't been located.

Surveillance video from a Best Buy in Gainesville showed Bravo and Aguilar together about 3 p.m. Thursday so Aguilar could buy G.O.O.D. Music's "Cruel Summer," said police. Police haven't found the CD.