IV. Leo married Lina and they begot a son. After the bitth of their child, Lina exhibited unusual behavior and started to neglect her son; she frequently went out with her friends and gambled in casinos. Lina later had extra-marital affairs with several men and eventually abandoned Leo and their son. Leo was able to talk to the psychiatrist of Lina who told him that Lina suffers from dementia praecox, a form of psychosis where the afflicted person is prone to commit homicidal attacks. Leo was once stabbed by Lina but fortunately he only suffered minor injuries. Will a Petition for Declaration of Nullity of Marriage filed with the court prosper? Explain. (5%)