While most of the town mourned the death of a beloved local police officer, vandals struck outside of Little Elm High School on Wednesday night, spray painting the marching band's equipment trailer.

School officials discovered the trailer had been spray painted with several words, including derogatory terms and the words "We Are Back."

It's believed the damage occurred sometime during the 7 p.m. candlelight vigil for Little Elm Police Detective Jerry Walker – an event thousands attended, including many students and staff members from the school.

"There's no need for stuff like this," said Pat Robbins, spokesperson for the Little Elm Independent School District. "It's never a good time for something like this to happen, but right now when our entire community is in mourning, it's pretty thoughtless."

Robbins said the trailer had recently been updated and painted for about $40,000.

This is the second time in recent months that the trailer has been hit, but Robbins said this time was significantly worse.

The school plans to work with police to investigate, once officers have had time to mourn the loss of their colleague.