Rocky, one of only six tactical K-9s serving with the U.S. Marshals nationwide and assigned to the Southern District of Texas, sustained bullet injuries to his nose and neck while tracking down a suspect accused of killing Brazoria County Deputy Jesus Vargas in January.

K-9 Rocky, a U.S. Marshals dog injured during a manhunt for a Brazoria County deputy’s suspected killer, is expected to recover, but officials say it could “take a while.”

K-9 Rocky, a U.S. Marshals dog injured during a manhunt for a Brazoria County deputy’s suspected killer, is expected to recover, but officials say it could “take a while.”

Here is what we know about the U.S. Marshal K-9 wounded by a suspect during Wednesday's manhunt.