A Roanoke grand jury indicted two men Monday on charges of aggravated involuntary manslaughter in two fatal wrecks that authorities say were alcohol-related.

Ohio resident Brooks Ryan Leisure, 25, also was charged with misdemeanor driving under the influence in the Oct. 11 head-on collision that killed Rocky Mount police officer Jason William Maxey. According to the indictments, Leisure has a previous DUI conviction within the past five years and had a blood-alcohol content of 0.15 percent or more the night of the crash.

Raymond Lofton Burks, 42, of Vinton, faces several new charges in a Sept. 7 three-vehicle wreck that killed Roanoke resident David Stiff.

The grand jury indicted Burks on counts of both involuntary manslaughter and aggravated involuntary manslaughter in Stiff's death. He also is charged with the vehicular maiming of Paul Hackett, another passenger in the vehicle Stiff was riding in.

Burks also was indicted on a count of misdemeanor DUI. According to the indictment, Burks had a blood-alcohol content of 0.2 percent or more the evening of the crash.

The legal limit for driving in Virginia is 0.08 percent.

Aggravated involuntary manslaughter carries a maximum possible punishment of 20 years in prison, while involuntary manslaughter carries 10.

Roanoke police have said Leisure was driving north on southbound U.S. 220 between Elm Avenue and Franklin Road when his Isuzu Rodeo struck Maxey's Chevrolet Malibu.

Maxey, 34, died in the crash. He was off duty at the time, driving his personal vehicle.

Police wrote in a search warrant that Leisure appeared to be intoxicated and smelled of alcohol. He was charged with involuntary manslaughter soon after the crash. That charge likely will be dropped in favor of the new indictments.

Maxey had served in both the U.S. Navy and the Army National Guard. In February, he completed an 18-month mission in Kosovo, during which he met his fiancee.

On Oct. 19, hundreds of people attended his funeral service at Franklin County High School.

The wreck that Roanoke authorities accuse Burks of causing happened about 9 p.m. Sept. 7 on Gus W. Nicks Boulevard in Northeast Roanoke.

Burks initially was charged with driving while intoxicated after the Plymouth Voyager he was driving collided head-on with a Pontiac Bonneville, then hit a Mercury Sable station wagon.

Stiff, 36, was riding in the front passenger seat of the Pontiac. Two back-seat passengers, Hackett, 20, and Josh Walters, 23, both of Vinton, were taken to a hospital. Burks is charged in connection with Hackett's injuries.

A 16-year-old girl and a 15-year-old boy traveling in the Sable were not taken to a hospital, police said.

Police say the driver of the Pontiac, David Wayne Laprade, 45, of Roanoke, left the scene of the crash before officers arrived.

The grand jury indicted Laprade on Monday on a count of felony hit-and-run.

Police have said Laprade was the only person involved in the crash who was wearing a seat belt.