This is crazy!!

A German man has been arrested on suspicion of murdering his girlfriend after seemingly tattooing the date he allegedly killed her on his arm (pictured above).

According to reports, investigators in Spain accused Dominik Riedl of writing the name of his lover Lisa on his arm along with her date of birth.

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Authorities claim the “macabre” tattoo also includes her apparent date of death, along with the words Gracias Por Todo – Spanish for “Thanks for Everything.”

Thanks to this clue-ridden ink, officials now say the 22-year-old slit his girlfriend’s throat on October 27 and stuffed her body in trash bags before fleeing with their 18-month-old son and the victim’s cellphone.

Lisa’s mother found her daughter’s dead body about three weeks later, by which time her killer had fled the country.

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A Europe-wide manhunt was sparked by a selfie Riedl later posted on the 20-year-old victim’s Facebook next to the Eiffel Tower after the disturbing crime took place.

Police eventually tracked Riedl to a hotel in Lloret de Mar, Spain, which was reportedly a pit stop on the attacker’s route to North Africa.

Riedl is awaiting extradition to Germany where he faces a number of charges. His son will be placed with social services.