Last week, a 24-year old Texas man was smoking his vape pen when it exploded, killing him.

Per NY Post, William Brown bought a vape pen from Smoke & Vape DZ in Keller Texas and he wasn’t a regular smoker. He was in his grandmother’s car when the vape pen exploded, cutting his carotid artery. He died two days later at the hospital.

The battery of the vape pen malfunctioned.

“When they X-rayed him, they found the stem, the metal embedded to where the blood flows up to the brain,” his grandmother said.

US Fire Administration statistics state that most of the explosions from e-cigarettes and vapes is while the device is used or stored in a pocket but none of have resulted in death. There have been 133 injuries from 2017.