A bodybuilder YouTube star died after a Tinder date went bad.
Giant Erich Stelzer, 24, was tased by cops following a vicious assault on his date Maegan Tapley.
The 6ft 8inch Stelzer repeatedly stabbed Tapley and although she survived the horror attack she could lose an eye.
When Massachusetts police raced to the scene, they repeatedly tased the bodybuilder, who died shortly afterwards.
On arriving at Stelzer's residence at around 10pm they said he repeatedly slashed his veterinary assistant date.
A spokesman said: "In an effort to rescue the victim and disarm Stelzer, Cohasset police officers used Tasers to subdue Stelzer."
Stelzer became unresponsive soon after the tasing, and stopped breathing while being transported to the hospital.
Tapley's mother, Susan Tapley, said in a statement seen that her daughter will recover from the traumatic attack.
'She's going to mend, she's going to be alright, it's going to take time to recover. She'll need plastic surgery and an eye specialist,' she said.
A source claimed Stelzer was in an 'altered mental state' or suffering a 'possible mental health issue' at the time of the domestic violence incident.
His neighbor, Fred Siegel, told the local station: 'It's unfortunate you never want to see anybody get hurt and you certainly don't want to see someone die over something.
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