deleted post writing mom and son day testing out his new christmas present according to prosecutors. within days, the son's behavior sets up alarm bells at oxford high school. prosecutors rang out a string of glaring that followed. >> searching ammunition on the cell phone during class and reported the same to school officials. >> reporter: jennifer crumbley doesn't respond to messages from the school. but investigators say she does send a text message to her son. lol, i'm not mad at you, you have to learn not to get caught. the next day before the shooting another teacher makes a shocking discovery. >> the drawing of a semi-automatic handgun pointing to the words the thoughts won't stop, help me end quote. another section, a drawing of a bullet with the following words, quote, blood everywhere, end quote. between the drawing of the gun and bullet is a drawing of a person who appears to have been shot twice and bleeding.