I can't find anyone to draw and write, and there is no evidence.

Painting and writing can't find people, and the treatment without evidence is as follows:

1. Report the case to the local public security organ in time, and provide information such as the location and time of the case, so that the police can investigate and handle it as soon as possible. If you or witnesses have taken evidence of graffiti, it is best to provide it to the police as an important basis for the case.

2. Search for relevant clues at the crime scene. You can look in the direction of graffiti and see if there are related items, handwriting, photos and other clues that can help find the murderer.

If you often pass by the crime scene, you can pay more attention to the people and things around you. If suspicious persons or suspicious clues are found, they can report to the public security organs and property management personnel in time to assist the police and relevant units in strengthening security.