Tiba was born into the gens (clan) Tomaj of Pecheneg origin, but his kinship relations to the other members of the large kindred is uncertain.
The victim's brother Pat Győr, who succeeded him in the dignity, summoned the suspected perpetrator "before the king's presence", but, instead, Tiba fled the Kingdom of Hungary.
After his conduct, the court considered the allegations justified, and Tiba was convicted and sentenced to death in absentia by Andrew II and his fellow appointed judges.
[1] The motivation of the murder is unclear; historian Erik Fügedi considered it as the "first documented political assassination" in Hungary.
[3] Historian Pál Szabó analyzed the verdict's narrative and political circumstances (only a single private law document mentions the felony), and considered Csépán was killed by Tiba for personal reasons.