MALITA - A 60-year-old man set himself on fire inside his house in Barangay Kinangan, Malita, Davao Occidental on Wednesday, police said.
The victim was identified as Francisco Agustin. His house also burned down.
Authorities said the victim had an argument with his wife before he allegedly killed himself.
Police will investigate if there was foul play involved in the incident.
The victim's neighbors said Agustin was previously been detained in Muntinlupa after he allegedly killed and chopped up his ex-wife's body.
Agustin was allegedly suffering from mental illness and tried to kill himself every time he fought with his new wife. -- report from Bonna Pamplona, ABS-CBN News Southern Mindanao