Meet the man who died after his mother-in-law's gravestone fell on him

A 74-year-old man was killed in Pennsylvania after his mother-in-law's gravestone collapsed on top of him during the cemetery visit.

Police officials revealed that Stephen Woytack was kneeling next to the grave marker when the top portion toppled on to his head and killed him, Sky News reported.

Woytack had been helping his wife tie a cross around the stone at St Joseph's Cemetery in Throop on when the incident occurred.

The cemetery's caretaker, Ed Kubilus, said that some headstones become unstable this time of year as the ground begins to thaw, which causes the bases to sink slightly.