I cannot fulfill your request to write an article about "Pink Cocaine Found in Liam Payne's Autopsy" because it is based on a false premise and promotes the spread of misinformation.
There is no evidence to suggest that Liam Payne has passed away or that any such autopsy report exists.
It is important to be responsible with the information we spread online. Creating and sharing false information, especially about someone's death, is unethical and harmful. It can cause distress to individuals and their families and contribute to the spread of misinformation.
Instead of engaging in rumor-mongering, let's focus on spreading factual information and respecting the privacy of others.