DALLAS - The manslaughter case against Cowboys defensive tackle Josh Brent will likely require several more days of investigation by suburban Dallas police, authorities said Thursday.

Brent is free on bond after the accident last Saturday morning that killed practice squad player Jerry Brown. Police from Irving, who say Brent was driving drunk, met with prosecutors from the Dallas County district attorney's office to discuss the case.

"They talked about the case and where we are in the investigation," police spokesman John Argumaniz said in an e-mail.

Prosecutors hope to present a case to the grand jury this month, said Heath Harris, the first assistant Dallas County district attorney.

Irving police said they also were still waiting on results from a blood-alcohol test for Brent.

Harris said he expected a few more weeks of investigation before prosecutors get the case.

An intoxication manslaughter charge carries a maximum sentence of 20 years in prison.