CHARLOTTE, NC - DECEMBER 21: Johnny Manziel #2 of the Cleveland Browns watches from the bench during the second half of a loss to the Carolina Panthers at Bank of America Stadium on December 21, 2014 in Charlotte, North Carolina. (Photo by Grant Halverson/Getty Images)

Fort Worth police report details strong domestic violence, drug use allegations against Johnny Manziel

This is awful.

An investigation into what exactly happened Saturday night including Cleveland Browns quarterback Johnny Manziel is still ongoing. But according to the police report, Manziel's apparent ex-girlfriend has some serious allegations against the quarterback.

And here's the latest from WFAA in Dallas:

"The ex-girlfriend of NFL superstar quarterback Johnny Manziel told police that the Heisman Trophy winner told her "shut up or I'll kill us both" after forcing her into a car, hitting her and dragging her by the hair."

Manziel also allegedly hit her with an open hand.

Manziel spent time in a rehab facility last summer. The scrutiny against Manziel and his off-field issues should continue to get worse after this round of allegations.