Police are hunting for a 54-year-old man accused of shooting his girlfriend and a golf course manager in Kanchanaburi province.
The incident took place at about 4.40pm on Wednesday at Mae Klong Dam Golf Course in Kanchanaburi.
Natthawat Donmon allegedly shot his 35-year-old girlfriend who was also playing golf. She was shot once in the chest and twice in the right shoulder. She works as a caddie at a golf course in Ratchaburi, and is receiving treatment at a hospital in Ratchaburi.
The suspect then shot the 67-year-old manager of the course. He was shot under the chin and died in hospital on Thursday morning.
Police identified the suspect through the accounts of eyewitnesses. The gunman drove a golf cart to approach the victims.
Police believed that the motive behind the crime is connected to a love affair.