Lynyrd Skynyrd Deny Johnny Van Zant Heart Attack Rumors; Gary Rossington Undergoes Another Heart-Related ProcedureLynyrd Skynyrd Deny Johnny Van Zant Heart Attack Rumors; Gary Rossington Undergoes Another Heart-Related ProcedureLynyrd Skynyrd have been temporarily forced off the road - but not, they insist, because singer Johnny Van Zant had a heart attack. Matthew WilkeningMatthew Wilkening