Regex problem: period not matching newline in s///s?

Here's my perl script:

#!C:/perl/bin/perl.exe -Wpi.orig
s#<RD:Documento>([0-9]{1,4})( D\.?P\.?R\.? )([0-9]{1,4})(.*Juez.*</TA>)#<RD:Documento>$1$2$3$4\n<CM>HTMLINSERT:<a href="/Download/DPR4/Sumarios_Escolios/Tomo$1/$1DPR$3-Escolio.pdf" target=centerframe><center><font face=Arial size=1>Ver Escolio</A></CM>\n#s;

And here's my text file, between but not including "---"s:
---

<RD>Así lo pronunció y manda el Tribunal y lo certifica el señor Secretario General. El Juez Presidente señor Andréu García y el Juez Asociado señor Negrón García inhibidos. El Juez Asociado señor Rebollo López no intervino. <CM>LineFeed</CM>

<RD><CM>LineFeed</CM>

<RD>Francisco R. Agrait Lladó, Secretario General <CM>LineFeed</CM>

<RD><CM>LineFeed</CM>

<RD><PB>
<RD>
<RD:Documento>135 DPR 259 --  In Re: Colton, Villanueva, Miró, Figueroa, Brunet
<RD>
<RD>
<TA:1,1; JU:LF; BR:AL:0.00972222,0.0298611,HZ:0.00972222,0.0298611,VT:0.00972222,0.0298611>
<RO><CE: HI; VA:CN><JU:CN><CM>HTMLINSERT:<a href="/Download/DPR4/135/135_259.DOC" target=centerframe><center><font face=Arial size=1>Grabar la Decisión</A></CM>
</TA>

<RD>
<TA:2,1.5,3.5; JU:CN; BR:AL:0.00972222,0.0298611,HZ:0.00972222,0.0298611,VT:0.00972222,0.0298611; SD:255,255,0>
<RO><CE: MR:1; SD:0,0,128><JU:CN><CM>C Ta info</CM>
<BD+><FC:255,255,255><BC:DC>Información del Documento<IT+><FC><BC></CE>
<RO><CE><FT:Arial,SR><PT:8>Partes:<BD></CE><CE><FD:Nombre>In re: Pedro Colton Fontán, Osvaldo Villanueva Díaz, Aurelio Miró Carrión, Angel Figueroa Vivas, Juan E. Brunet Justiniano</FD:Nombre></CE>
<RO><CE><BD+>Fecha:<BD></CE><CE><FD:Fecha><HD+>3/4/1994</FD:Fecha><HD>4 de marzo de 1994<BD+></CE>
<RO><CE>Cita:<BD></CE><CE><FD:DocID><HD+> 135DPR259</FD:DocID><HD->  135 DPR 259</CE>
<RO><CE><BD+><HD>Juez:<BD><HD-></CE><CE> <FD:Autor><BD-> Resolución</FD:Autor><BD+></TA>

<RD>
<RD:Seccion>Opinión
<RD>
<RD:Pagina>Página: 259
<RD>
<RD>CE-86-666<CM>MJSEP</CM>
<HR>
<RD><CM>MJSEPEND</CM>
Conducta Profesional<CM>MJSEP</CM>
<HR>
---

According to this app I downloaded, The Regex Coach, the regex matches a good chunk of the file, specifically from the beginning of the line starting with <RD:Documento> until the end of the line that contains "Juez", but the script does nothing.  When I fiddle with the regex to pinpoint the problem, I find that up to the end of the third expression it does match as I expect, but when I add in the fourth, (.*Juez.*</TA>), it stops working. Does it have something to do with the newlines that should be matched by that expression?

Thanks!