VANCOUVER, Wash. (AP) — Hundreds of law enforcement and other vehicles lined up Tuesday at Clark College in Vancouver, Washington, for a procession to honor Clark County Sheriff’s Detective Jeremy Brown, who was shot to death while doing surveillance work.

Brown was shot July 23 while he sat in his vehicle in an apartment parking lot. During his service with the sheriff’s office, Brown worked as a corrections deputy and patrol deputy.

Several people have been arrested in connection with his death.