BeOnTheLookout.cs

void BeOnTheLookout(float radius) {
    Collider[] hitColliders = Physics.OverlapSphere(transform.position, radius);

    int highestBounty = 0;
    Collider mostWantedCriminal = null;
    foreach (Collider criminal in hitColliders) {
        var bounty = criminal.GetComponent<Bounty>();
        if (bounty == null) {
            continue;
        }

        if (highestBounty < bounty.wanted) {
            highestBounty = bounty.wanted;
            mostWantedCriminal = criminal;
        }
    }

    if (mostWantedCriminal == null) {
        return;
    }

    Pursuit(mostWantedCriminal.transform.position);

    if (Vector3.Distance(transform.position, mostWantedCriminal.transform.position) < rangeToPunch) {
        agent.isStopped = true;
        anim.SetTrigger("Punch");
    } else if (Vector3.Distance (transform.position, mostWantedCriminal.transform.position) > rangeToPunch) {
        Pursuit(mostWantedCriminal.transform.position);
    }
}