A Turkish man allegedly killed a family of four, including the one who he claimed was his lover, in Istanbul Saturday, local media reported.

Mustafa Senkaloglu, 56, allegedly killed Ms. Meryem Oktay, who had rejected his advances for several times, as well as her daughter, son-in-law and grandchild, according to a report by the private NTV channel.

Senkaloglu was on his way to Oktay’s house, where he met her son-in-law Ramazan Kasa. After an altercation Senkaloglu reportedly shot with a gun and killed Ramazan and his 4-year-old child Furkan Kasa. Then the suspect proceeded to Oktay’s house, where he was reported to murder Oktay and her daughter Leyla Kasa.

Senkaloglu fled the scene after the killing. Police are investigating the case.