03/07/2012 01:07 pm ET Updated Mar 07, 2012

Daniel Jesus La Rosa Arrested For Threatening Sweetwater Police Officer

A man charged with threatening Sweetwater Police said he lashed out because his girlfriend dumped him for an officer.

Daniel Jesus La Rosa, 25, used Instagram to post an image on Facebook labeled "Diary Of A Cop Killa," according to Michelle Hammontree-Garcia, City of Sweetwater's Public Affairs Specialist.

Hammontree-Garcia says the picture showed a video game character in a gas mask pointing a fire arm with two apparently dead policemen in the background.

The image was accompanied by the message:

Make my day!!
yo cereal?
I thought we were boys
I got no beef with u!
It is a Sweetwater PD that’s gotta die!!! Lol

Monday La Rosa was arrested at his workplace at 11025 SW 84th Street, the address for Ace Academy, a non-profit school for students with disabilities.

He is charged with corruption by threat against a public servant.

Hammontree-Garcia says La Rosa admitted to making the online threat, explaining that his girlfriend had recently broken up with him and had started dating a Sweetwater police officer.