A metro bus driver has been indicted on charges related to a 2008 deadly crash. ABC7 uncovered that Ronald Taylor's record bears a number of arrests before he was hired by Metro.

According to online court records, Taylor was arrested on a number of charges in the late 80s to early 90s, including gun and drug charges. This was long before he was hired by Metro.

ABC7 contacted Metro officials to explain why Taylor was hired despite those charges – and how he was hired again after the 2008 accident.

Reached on Thursday evening, a metro spokesperson told ABC reporter Jay Korff the transportation agency does background checks on all its employees. He said Metro will look into this matter first thing Friday.

The president of the Amalgamated Transit Union Local 689, Jackie Jeter, says that Taylor was reinstated in last June after an arbitrator ruled that WMATA didn't follow proper procedures in his firing.

"Anyone who is arrested is innocent until proven guilty," Jeter said. She added that an employee being placed out of service without pay is standard operating procedure in these situations.

Taylor was arrested Thursday morning at the Cheverly station on charges that he hit and killed a person with a Metrobus in 2008.

A grand jury charged him with negligent homicide on Tuesday. Taylor allegedly struck and killed Bartlett Tabor with his bus on Sept. 26, 2008.

Taylor allegedly ran a red light in Foggy Bottom, plowed into a tax and killed Tabor, who was in D.C. on business with his wife and children. Taylor had been on the job for just six months.

WMATA spokesman Steve Taubenkible says that Taylor had been employed by Metro from March to October of 2008 and then again from June 2010 until now. Taylor is now out of service without pay.

On Thursday, Taylor appeared in court for an initial arraignment. He was released but was required to surrender his license and take drug tests.