ST. LOUIS – A federal jury Friday convicted seven members of what prosecutors said was a dangerous, violent nationwide motorcycle gang linked to killings, robberies, drug dealing and other mayhem.

Jurors, after a seven-week trial involving testimony from more than 60 witnesses, returned guilty verdicts on charges ranging from racketeering conspiracy to murder, attempted murder and evidence tampering by the Wheels of Soul, a mixed-race club with some 400 members.

James “Animal” Smith, the group’s 66-year-old national vice president from Philadelphia, and Dominic Henley, a lawyer who served as president of the Wheels of Soul’s St. Louis chapter, were convicted of racketeering conspiracy.