If the state's prosecutor obtains a criminal conviction of the perpetrator, and anyone who acted in concert or facilitated the perpetrator's actions, that will immeasurably help in any potential private lawsuit the victim may bring against the perpetrator and others involved.
If there is a criminal conviction the victim likely would not need a "pro bono" lawyer so long as the perpetrator has any meaningful assets or had any applicable insurance coverage as plaintiffs' lawyers typically take such cases on a contingency basis, and get paid out of the recovery they help the victim obtain. However, before taking on a case a good plaintiffs lawyer checks to determine if a judgment would be collectible. In situations where the perpetrator has little or no assets, and lacks insurance that conceivably may cover his actions, and if those who acted in concert with him also lack meaningful assets or applicable insurance, a plaintiff's lawyer would be reluctant to bring civil litigation as it may not make any financial sense because a judgment against someone without assets -- and who is unlikely to accumulate assets in the future -- is rather worthless.