3 Give Clues To Assailant Of Young BoyPoliee Redouble Efforts to Find Youth Who Beat . Richard Ruzyckis-oriyInasortsb-Tips from three chance witnesses were investigated by Syracuse detectives today as they redoubled efforts to apprehend the assailant of P.ichard Ruzycki 11 of 510 Tennyson Avenue who. is reported In ‘highly critical” condition in Syracuse.Memorial iHospilal.According to hospital attendants, Richard is suffering from a sever skull Iraclure and multiple lacerations ot the scalp nnd forehead.He -was boater. In Burnet Park early Thursday night by en unidentified youth, police said. Richard lay unnoticed in a semi-conscious condition In the park all night before summoning strength to stagger to his home.Shocked, by the brulality of-the case. Police. Chief William E. Rapp yesterday cancelled plans to attend the 40th annual convention of the State Association of Police Chiefs'la Now York City, declaring he would remain In Syracuse until the. assailant is captured. Chief Rapp was to have been a featured speaker at the conclave.• Inspector Fred Arnold was assigned a force cf eight detectives to help speed the search.According to the police reconstruction -of the* case. Richard Ruzycki left the Eumet Park swimming pool shortly after 7 P.M. Thursday and started hnmc.On the way he stopped to hunt for goif halls In a gully near the fifth hot® of the park golf course. While searching, he was accosted by. an older boy, whom he has . since described as being aboutff-f 15 years of age.” y !stPolice report the youth Ufrp« ^ Richard to the ground and beat him into unconsciousness with a stone. /